49195159518 has 64 divisors (see below), whose sum is σ = 104128727040. Its totient is φ = 15451568352.

The previous prime is 49195159477. The next prime is 49195159523. The reversal of 49195159518 is 81595159194.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18472255 + ... + 18474917.

It is an arithmetic number, because the mean of its divisors is an integer number (1627011360).

Almost surely, 2^49195159518 is an apocalyptic number.

49195159518 is an abundant number, since it is smaller than the sum of its proper divisors (54933567522).

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

49195159518 is a wasteful number, since it uses less digits than its factorization.

49195159518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501.

The product of its digits is 2916000, while the sum is 57.

The spelling of 49195159518 in words is "forty-nine billion, one hundred ninety-five million, one hundred fifty-nine thousand, five hundred eighteen".