49961286920 has 32 divisors (see below), whose sum is σ = 113298048000. Its totient is φ = 19827154368.

The previous prime is 49961286917. The next prime is 49961286953. The reversal of 49961286920 is 2968216994.

It is a happy number.

49961286920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×49961286920² (a number of 22 digits) contains 22 as substring.

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, 4912370 + ... + 4922529.

It is an arithmetic number, because the mean of its divisors is an integer number (3540564000).

Almost surely, 2^49961286920 is an apocalyptic number.

49961286920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49961286920 is an abundant number, since it is smaller than the sum of its proper divisors (63336761080).

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

49961286920 is a wasteful number, since it uses less digits than its factorization.

49961286920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9835037 (or 9835033 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 49961286920 in words is "forty-nine billion, nine hundred sixty-one million, two hundred eighty-six thousand, nine hundred twenty".