49776988816 has 10 divisors (see below), whose sum is σ = 96442915862. Its totient is φ = 24888494400.

The previous prime is 49776988799. The next prime is 49776988817. The reversal of 49776988816 is 61888967794.

It can be written as a sum of positive squares in only one way, i.e., 49524051600 + 252937216 = 222540^2 + 15904^2 .

It is not an unprimeable number, because it can be changed into a prime (49776988817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555530885 + ... + 1555530916.

Almost surely, 2^49776988816 is an apocalyptic number.

It is an amenable number.

49776988816 is a deficient number, since it is larger than the sum of its proper divisors (46665927046).

49776988816 is a wasteful number, since it uses less digits than its factorization.

49776988816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111061809 (or 3111061803 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 73.

The spelling of 49776988816 in words is "forty-nine billion, seven hundred seventy-six million, nine hundred eighty-eight thousand, eight hundred sixteen".