49900645720 has 32 divisors (see below), whose sum is σ = 115014906720. Its totient is φ = 19473422080.

The previous prime is 49900645643. The next prime is 49900645727. The reversal of 49900645720 is 2754600994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49900645727) 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, 15211972 + ... + 15215251.

It is an arithmetic number, because the mean of its divisors is an integer number (3594215835).

Almost surely, 2^49900645720 is an apocalyptic number.

49900645720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49900645720 is an abundant number, since it is smaller than the sum of its proper divisors (65114261000).

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

49900645720 is a wasteful number, since it uses less digits than its factorization.

49900645720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30427275 (or 30427271 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 49900645720 in words is "forty-nine billion, nine hundred million, six hundred forty-five thousand, seven hundred twenty".