49645440000 has 1320 divisors, whose sum is σ = 210645634320. Its totient is φ = 11501568000.

The previous prime is 49645439969. The next prime is 49645440023. The reversal of 49645440000 is 4454694.

49645440000 is a `hidden beast` number, since 4 + 9 + 645 + 4 + 4 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2920319992 + ... + 2920320008.

It is an arithmetic number, because the mean of its divisors is an integer number (159580026).

Almost surely, 2^49645440000 is an apocalyptic number.

49645440000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49645440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105322817160).

49645440000 is an abundant number, since it is smaller than the sum of its proper divisors (161000194320).

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

49645440000 is a wasteful number, since it uses less digits than its factorization.

49645440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 49645440000 its reverse (4454694), we get a palindrome (49649894694).

The spelling of 49645440000 in words is "forty-nine billion, six hundred forty-five million, four hundred forty thousand".