113685777850 has 36 divisors (see below), whose sum is σ = 216738950922. Its totient is φ = 44365148800.

The previous prime is 113685777823. The next prime is 113685777851. The reversal of 113685777850 is 58777586311.

It can be written as a sum of positive squares in 9 ways, for example, as 10122170881 + 103563606969 = 100609^2 + 321813^2 .

It is not an unprimeable number, because it can be changed into a prime (113685777851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 592249 + ... + 760348.

Almost surely, 2^113685777850 is an apocalyptic number.

113685777850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113685777850 is a deficient number, since it is larger than the sum of its proper divisors (103053173072).

113685777850 is a wasteful number, since it uses less digits than its factorization.

113685777850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352691 (or 1352645 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 58.

The spelling of 113685777850 in words is "one hundred thirteen billion, six hundred eighty-five million, seven hundred seventy-seven thousand, eight hundred fifty".