49691819592 has 24 divisors (see below), whose sum is σ = 134582011590. Its totient is φ = 16563939840.

The previous prime is 49691819509. The next prime is 49691819599. The reversal of 49691819592 is 29591819694.

49691819592 is a `hidden beast` number, since 496 + 91 + 8 + 1 + 9 + 59 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45776314116 + 3915505476 = 213954^2 + 62574^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (49691819599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345082009 + ... + 345082152.

Almost surely, 2^49691819592 is an apocalyptic number.

It is an amenable number.

49691819592 is an abundant number, since it is smaller than the sum of its proper divisors (84890191998).

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

49691819592 is a wasteful number, since it uses less digits than its factorization.

49691819592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690164173 (or 690164166 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 63.

The spelling of 49691819592 in words is "forty-nine billion, six hundred ninety-one million, eight hundred nineteen thousand, five hundred ninety-two".