154115709813 has 36 divisors (see below), whose sum is σ = 255232394820. Its totient is φ = 89261572608.

The previous prime is 154115709773. The next prime is 154115709857. The reversal of 154115709813 is 318907511451.

154115709813 is a `hidden beast` number, since 1 + 54 + 11 + 570 + 9 + 8 + 13 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 46073334609 + 108042375204 = 214647^2 + 328698^2 .

It is not a de Polignac number, because 154115709813 - 2¹² = 154115705717 is a prime.

It is a super-2 number, since 2×154115709813² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154115709883) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2954298 + ... + 3006011.

It is an arithmetic number, because the mean of its divisors is an integer number (7089788745).

Almost surely, 2^154115709813 is an apocalyptic number.

154115709813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

154115709813 is a deficient number, since it is larger than the sum of its proper divisors (101116685007).

154115709813 is a wasteful number, since it uses less digits than its factorization.

154115709813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960358 (or 5960342 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 45.

The spelling of 154115709813 in words is "one hundred fifty-four billion, one hundred fifteen million, seven hundred nine thousand, eight hundred thirteen".