49252990464 has 640 divisors, whose sum is σ = 165932236800. Its totient is φ = 14342676480.

The previous prime is 49252990439. The next prime is 49252990481. The reversal of 49252990464 is 46409925294.

49252990464 is a `hidden beast` number, since 4 + 92 + 5 + 2 + 9 + 90 + 464 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 49252990464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 187273597 + ... + 187273859.

It is an arithmetic number, because the mean of its divisors is an integer number (259269120).

Almost surely, 2^49252990464 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 49252990464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82966118400).

49252990464 is an abundant number, since it is smaller than the sum of its proper divisors (116679246336).

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

49252990464 is a wasteful number, since it uses less digits than its factorization.

49252990464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 49252990464 in words is "forty-nine billion, two hundred fifty-two million, nine hundred ninety thousand, four hundred sixty-four".