49995221136 has 80 divisors (see below), whose sum is σ = 148304698368. Its totient is φ = 14216630400.

The previous prime is 49995221131. The next prime is 49995221149. The reversal of 49995221136 is 63112259994.

It is a super-2 number, since 2×49995221136² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49995221131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281700 + ... + 423491.

Almost surely, 2^49995221136 is an apocalyptic number.

It is an amenable number.

49995221136 is an abundant number, since it is smaller than the sum of its proper divisors (98309477232).

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

49995221136 is a wasteful number, since it uses less digits than its factorization.

49995221136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705420 (or 705414 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 51.

The spelling of 49995221136 in words is "forty-nine billion, nine hundred ninety-five million, two hundred twenty-one thousand, one hundred thirty-six".