49780976940 has 36 divisors (see below), whose sum is σ = 151002297264. Its totient is φ = 13274927136.

The previous prime is 49780976899. The next prime is 49780976941. The reversal of 49780976940 is 4967908794.

49780976940 is a `hidden beast` number, since 497 + 80 + 9 + 7 + 69 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (49780976941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138280312 + ... + 138280671.

Almost surely, 2^49780976940 is an apocalyptic number.

It is an amenable number.

49780976940 is an abundant number, since it is smaller than the sum of its proper divisors (101221320324).

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

49780976940 is a wasteful number, since it uses less digits than its factorization.

49780976940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276560998 (or 276560993 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 49780976940 in words is "forty-nine billion, seven hundred eighty million, nine hundred seventy-six thousand, nine hundred forty".