115851494925 has 36 divisors (see below), whose sum is σ = 207526892404. Its totient is φ = 61780320000.

The previous prime is 115851494879. The next prime is 115851494933. The reversal of 115851494925 is 529494158511.

115851494925 is a `hidden beast` number, since 1 + 1 + 5 + 8 + 5 + 149 + 492 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 18556160841 + 97295334084 = 136221^2 + 311922^2 .

It is not a de Polignac number, because 115851494925 - 2¹² = 115851490829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2338209 + ... + 2387241.

Almost surely, 2^115851494925 is an apocalyptic number.

115851494925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115851494925 is a deficient number, since it is larger than the sum of its proper divisors (91675397479).

115851494925 is a wasteful number, since it uses less digits than its factorization.

115851494925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59550 (or 59542 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 54.

The spelling of 115851494925 in words is "one hundred fifteen billion, eight hundred fifty-one million, four hundred ninety-four thousand, nine hundred twenty-five".