49413907644 has 12 divisors (see below), whose sum is σ = 115299117864. Its totient is φ = 16471302544.

The previous prime is 49413907637. The next prime is 49413907691. The reversal of 49413907644 is 44670931494.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058912807 + ... + 2058912830.

It is an arithmetic number, because the mean of its divisors is an integer number (9608259822).

Almost surely, 2^49413907644 is an apocalyptic number.

It is an amenable number.

49413907644 is an abundant number, since it is smaller than the sum of its proper divisors (65885210220).

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

49413907644 is a wasteful number, since it uses less digits than its factorization.

49413907644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117825644 (or 4117825642 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 49413907644 in words is "forty-nine billion, four hundred thirteen million, nine hundred seven thousand, six hundred forty-four".