49671989696 has 112 divisors (see below), whose sum is σ = 116890044096. Its totient is φ = 20498448384.

The previous prime is 49671989651. The next prime is 49671989723. The reversal of 49671989696 is 69698917694.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (74).

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, 1592426 + ... + 1623318.

It is an arithmetic number, because the mean of its divisors is an integer number (1043661108).

Almost surely, 2^49671989696 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 49671989696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58445022048).

49671989696 is an abundant number, since it is smaller than the sum of its proper divisors (67218054400).

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

49671989696 is a wasteful number, since it uses less digits than its factorization.

49671989696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31046 (or 31036 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 74.

The spelling of 49671989696 in words is "forty-nine billion, six hundred seventy-one million, nine hundred eighty-nine thousand, six hundred ninety-six".