49757579136 has 48 divisors (see below), whose sum is σ = 143182620360. Its totient is φ = 16585859328.

The previous prime is 49757579093. The next prime is 49757579149. The reversal of 49757579136 is 63197575794.

49757579136 is a `hidden beast` number, since 4 + 9 + 7 + 57 + 579 + 1 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×49757579136³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21595020 + ... + 21597323.

Almost surely, 2^49757579136 is an apocalyptic number.

It is an amenable number.

49757579136 is an abundant number, since it is smaller than the sum of its proper divisors (93425041224).

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

49757579136 is a wasteful number, since it uses less digits than its factorization.

49757579136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43192363 (or 43192348 counting only the distinct ones).

The product of its digits is 50009400, while the sum is 63.

The spelling of 49757579136 in words is "forty-nine billion, seven hundred fifty-seven million, five hundred seventy-nine thousand, one hundred thirty-six".