49897144672 has 48 divisors (see below), whose sum is σ = 103561500672. Its totient is φ = 23630060160.

The previous prime is 49897144663. The next prime is 49897144673. The reversal of 49897144672 is 27644179894.

It is a self number, because there is not a number n which added to its sum of digits gives 49897144672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49897144673) 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, 488478 + ... + 581725.

It is an arithmetic number, because the mean of its divisors is an integer number (2157531264).

Almost surely, 2^49897144672 is an apocalyptic number.

It is an amenable number.

49897144672 is an abundant number, since it is smaller than the sum of its proper divisors (53664356000).

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

49897144672 is a wasteful number, since it uses less digits than its factorization.

49897144672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070291 (or 1070283 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 61.

The spelling of 49897144672 in words is "forty-nine billion, eight hundred ninety-seven million, one hundred forty-four thousand, six hundred seventy-two".