49945596672 has 144 divisors (see below), whose sum is σ = 136624295808. Its totient is φ = 16189071360.

The previous prime is 49945596563. The next prime is 49945596677. The reversal of 49945596672 is 27669554994.

It is not an unprimeable number, because it can be changed into a prime (49945596677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7691347 + ... + 7697837.

It is an arithmetic number, because the mean of its divisors is an integer number (948779832).

Almost surely, 2^49945596672 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 49945596672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68312147904).

49945596672 is an abundant number, since it is smaller than the sum of its proper divisors (86678699136).

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

49945596672 is a wasteful number, since it uses less digits than its factorization.

49945596672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786 (or 6772 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 66.

The spelling of 49945596672 in words is "forty-nine billion, nine hundred forty-five million, five hundred ninety-six thousand, six hundred seventy-two".