49104931578 has 24 divisors (see below), whose sum is σ = 100663669824. Its totient is φ = 15969080160.

The previous prime is 49104931567. The next prime is 49104931657. The reversal of 49104931578 is 87513940194.

It is a super-2 number, since 2×49104931578² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49104931578.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2424226 + ... + 2444397.

It is an arithmetic number, because the mean of its divisors is an integer number (4194319576).

Almost surely, 2^49104931578 is an apocalyptic number.

49104931578 is an abundant number, since it is smaller than the sum of its proper divisors (51558738246).

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

49104931578 is a wasteful number, since it uses less digits than its factorization.

49104931578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868710 (or 4868669 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 49104931578 in words is "forty-nine billion, one hundred four million, nine hundred thirty-one thousand, five hundred seventy-eight".