49561121960 has 32 divisors (see below), whose sum is σ = 127442885760. Its totient is φ = 16992384576.

The previous prime is 49561121959. The next prime is 49561121983. The reversal of 49561121960 is 6912116594.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88501724 + ... + 88502283.

It is an arithmetic number, because the mean of its divisors is an integer number (3982590180).

Almost surely, 2^49561121960 is an apocalyptic number.

49561121960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49561121960 is an abundant number, since it is smaller than the sum of its proper divisors (77881763800).

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

49561121960 is a wasteful number, since it uses less digits than its factorization.

49561121960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177004025 (or 177004021 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 49561121960 in words is "forty-nine billion, five hundred sixty-one million, one hundred twenty-one thousand, nine hundred sixty".