49915992722 has 18 divisors (see below), whose sum is σ = 79545980703. Its totient is φ = 23487351232.

The previous prime is 49915992691. The next prime is 49915992809. The reversal of 49915992722 is 22729951994.

It can be written as a sum of positive squares in 5 ways, for example, as 14766867361 + 35149125361 = 121519^2 + 187481^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=157981.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5366708 + ... + 5376000.

Almost surely, 2^49915992722 is an apocalyptic number.

49915992722 is a deficient number, since it is larger than the sum of its proper divisors (29629987981).

49915992722 is an frugal number, since it uses more digits than its factorization.

49915992722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18622 (or 9312 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The spelling of 49915992722 in words is "forty-nine billion, nine hundred fifteen million, nine hundred ninety-two thousand, seven hundred twenty-two".