49149890544 has 80 divisors (see below), whose sum is σ = 137299926528. Its totient is φ = 15091485696.

The previous prime is 49149890521. The next prime is 49149890551. The reversal of 49149890544 is 44509894194.

It is a happy number.

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, 602422 + ... + 679125.

Almost surely, 2^49149890544 is an apocalyptic number.

It is an amenable number.

49149890544 is an abundant number, since it is smaller than the sum of its proper divisors (88150035984).

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

49149890544 is a wasteful number, since it uses less digits than its factorization.

49149890544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281622 (or 1281616 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 49149890544 in words is "forty-nine billion, one hundred forty-nine million, eight hundred ninety thousand, five hundred forty-four".