42634717650 has 144 divisors (see below), whose sum is σ = 130980081024. Its totient is φ = 9739779840.

The previous prime is 42634717649. The next prime is 42634717669. The reversal of 42634717650 is 5671743624.

42634717650 is a `hidden beast` number, since 4 + 2 + 63 + 471 + 76 + 50 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 42634717596 and 42634717605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11316067 + ... + 11319833.

It is an arithmetic number, because the mean of its divisors is an integer number (909583896).

Almost surely, 2^42634717650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42634717650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65490040512).

42634717650 is an abundant number, since it is smaller than the sum of its proper divisors (88345363374).

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

42634717650 is a wasteful number, since it uses less digits than its factorization.

42634717650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385 (or 7377 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 42634717650 in words is "forty-two billion, six hundred thirty-four million, seven hundred seventeen thousand, six hundred fifty".