49089640980 has 48 divisors (see below), whose sum is σ = 145536350400. Its totient is φ = 12320537088.

The previous prime is 49089640927. The next prime is 49089641021. The reversal of 49089640980 is 8904698094.

It is a self number, because there is not a number n which added to its sum of digits gives 49089640980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24062530 + ... + 24064569.

It is an arithmetic number, because the mean of its divisors is an integer number (3032007300).

Almost surely, 2^49089640980 is an apocalyptic number.

It is an amenable number.

49089640980 is an abundant number, since it is smaller than the sum of its proper divisors (96446709420).

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

49089640980 is a wasteful number, since it uses less digits than its factorization.

49089640980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48127128 (or 48127126 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 49089640980 in words is "forty-nine billion, eighty-nine million, six hundred forty thousand, nine hundred eighty".