647550940050 has 240 divisors, whose sum is σ = 2059363817280. Its totient is φ = 147788634240.

The previous prime is 647550940033. The next prime is 647550940067. The reversal of 647550940050 is 50049055746.

647550940050 is a `hidden beast` number, since 6 + 4 + 7 + 550 + 9 + 40 + 0 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (647550940033) and next prime (647550940067).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 647550939978 and 647550940005.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 19176081 + ... + 19209819.

It is an arithmetic number, because the mean of its divisors is an integer number (8580682572).

Almost surely, 2^647550940050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647550940050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1029681908640).

647550940050 is an abundant number, since it is smaller than the sum of its proper divisors (1411812877230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647550940050 is a wasteful number, since it uses less digits than its factorization.

647550940050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34447 (or 34433 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

Adding to 647550940050 its reverse (50049055746), we get a palindrome (697599995796).

It can be divided in two parts, 647550 and 940050, that added together give a square (1587600 = 1260²).

The spelling of 647550940050 in words is "six hundred forty-seven billion, five hundred fifty million, nine hundred forty thousand, fifty".