49895792640 has 448 divisors, whose sum is σ = 179908931520. Its totient is φ = 13281656832.

The previous prime is 49895792599. The next prime is 49895792651. The reversal of 49895792640 is 4629759894.

49895792640 is a `hidden beast` number, since 498 + 9 + 57 + 92 + 6 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89579242 + ... + 89579798.

Almost surely, 2^49895792640 is an apocalyptic number.

49895792640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49895792640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89954465760).

49895792640 is an abundant number, since it is smaller than the sum of its proper divisors (130013138880).

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

49895792640 is an frugal number, since it uses more digits than its factorization.

49895792640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 49895792640 in words is "forty-nine billion, eight hundred ninety-five million, seven hundred ninety-two thousand, six hundred forty".