48998841138 has 32 divisors (see below), whose sum is σ = 117262185600. Its totient is φ = 15076566288.

The previous prime is 48998841121. The next prime is 48998841139. The reversal of 48998841138 is 83114889984.

48998841138 is a `hidden beast` number, since 489 + 9 + 88 + 41 + 1 + 38 = 666.

It is a super-2 number, since 2×48998841138² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48998841139) 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, 34898758 + ... + 34900161.

It is an arithmetic number, because the mean of its divisors is an integer number (3664443300).

Almost surely, 2^48998841138 is an apocalyptic number.

48998841138 is an abundant number, since it is smaller than the sum of its proper divisors (68263344462).

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

48998841138 is a wasteful number, since it uses less digits than its factorization.

48998841138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69798943 (or 69798937 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The spelling of 48998841138 in words is "forty-eight billion, nine hundred ninety-eight million, eight hundred forty-one thousand, one hundred thirty-eight".