49990758426 has 96 divisors (see below), whose sum is σ = 126549296640. Its totient is φ = 13964928768.

The previous prime is 49990758361. The next prime is 49990758457. The reversal of 49990758426 is 62485709994.

49990758426 is a `hidden beast` number, since 49 + 9 + 9 + 0 + 7 + 584 + 2 + 6 = 666.

49990758426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6682200 + ... + 6689676.

It is an arithmetic number, because the mean of its divisors is an integer number (1318221840).

Almost surely, 2^49990758426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49990758426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63274648320).

49990758426 is an abundant number, since it is smaller than the sum of its proper divisors (76558538214).

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

49990758426 is a wasteful number, since it uses less digits than its factorization.

49990758426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668 (or 8665 counting only the distinct ones).

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

The spelling of 49990758426 in words is "forty-nine billion, nine hundred ninety million, seven hundred fifty-eight thousand, four hundred twenty-six".