49961380392 has 768 divisors, whose sum is σ = 184909824000. Its totient is φ = 12345177600.

The previous prime is 49961380379. The next prime is 49961380453. The reversal of 49961380392 is 29308316994.

49961380392 is a `hidden beast` number, since 499 + 61 + 3 + 8 + 0 + 3 + 92 = 666.

It is a super-2 number, since 2×49961380392² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 393396633 + ... + 393396759.

It is an arithmetic number, because the mean of its divisors is an integer number (240768000).

Almost surely, 2^49961380392 is an apocalyptic number.

49961380392 is a gapful number since it is divisible by the number (42) 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 49961380392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92454912000).

49961380392 is an abundant number, since it is smaller than the sum of its proper divisors (134948443608).

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

49961380392 is a wasteful number, since it uses less digits than its factorization.

49961380392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 49961380392 in words is "forty-nine billion, nine hundred sixty-one million, three hundred eighty thousand, three hundred ninety-two".