49879665408 has 54 divisors (see below), whose sum is σ = 132769125804. Its totient is φ = 16624492032.

The previous prime is 49879665401. The next prime is 49879665421. The reversal of 49879665408 is 80456697894.

It is not an unprimeable number, because it can be changed into a prime (49879665401) 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, 6185283 + ... + 6193341.

Almost surely, 2^49879665408 is an apocalyptic number.

49879665408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

49879665408 is an abundant number, since it is smaller than the sum of its proper divisors (82889460396).

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

49879665408 is an frugal number, since it uses more digits than its factorization.

49879665408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16137 (or 8064 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 49879665408 in words is "forty-nine billion, eight hundred seventy-nine million, six hundred sixty-five thousand, four hundred eight".