49213905640 has 32 divisors (see below), whose sum is σ = 116559252000. Its totient is φ = 18649479744.

The previous prime is 49213905599. The next prime is 49213905673. The reversal of 49213905640 is 4650931294.

49213905640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 32376810 + ... + 32378329.

It is an arithmetic number, because the mean of its divisors is an integer number (3642476625).

Almost surely, 2^49213905640 is an apocalyptic number.

49213905640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49213905640 is an abundant number, since it is smaller than the sum of its proper divisors (67345346360).

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

49213905640 is a wasteful number, since it uses less digits than its factorization.

49213905640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64755169 (or 64755165 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 49213905640 in words is "forty-nine billion, two hundred thirteen million, nine hundred five thousand, six hundred forty".