49172806512 has 160 divisors (see below), whose sum is σ = 148740480000. Its totient is φ = 15510735360.

The previous prime is 49172806499. The next prime is 49172806537. The reversal of 49172806512 is 21560827194.

49172806512 is a `hidden beast` number, since 49 + 17 + 2 + 80 + 6 + 512 = 666.

It is a super-2 number, since 2×49172806512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8607337 + ... + 8613047.

It is an arithmetic number, because the mean of its divisors is an integer number (929628000).

Almost surely, 2^49172806512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49172806512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74370240000).

49172806512 is an abundant number, since it is smaller than the sum of its proper divisors (99567673488).

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

49172806512 is a wasteful number, since it uses less digits than its factorization.

49172806512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796 (or 6784 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 49172806512 in words is "forty-nine billion, one hundred seventy-two million, eight hundred six thousand, five hundred twelve".