49678138560 has 56 divisors (see below), whose sum is σ = 157728092976. Its totient is φ = 13247503360.

The previous prime is 49678138501. The next prime is 49678138567. The reversal of 49678138560 is 6583187694.

It is a self number, because there is not a number n which added to its sum of digits gives 49678138560.

It is not an unprimeable number, because it can be changed into a prime (49678138567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25873071 + ... + 25874990.

Almost surely, 2^49678138560 is an apocalyptic number.

49678138560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49678138560 is an abundant number, since it is smaller than the sum of its proper divisors (108049954416).

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

49678138560 is a wasteful number, since it uses less digits than its factorization.

49678138560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51748081 (or 51748071 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 49678138560 in words is "forty-nine billion, six hundred seventy-eight million, one hundred thirty-eight thousand, five hundred sixty".