12435402553651 has 48 divisors (see below), whose sum is σ = 15845340014784. Its totient is φ = 9551139840000.

The previous prime is 12435402553643. The next prime is 12435402553687. The reversal of 12435402553651 is 15635520453421.

It is not a de Polignac number, because 12435402553651 - 2³ = 12435402553643 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12435402556651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98928621 + ... + 99054241.

It is an arithmetic number, because the mean of its divisors is an integer number (330111250308).

Almost surely, 2^{12435402553651} is an apocalyptic number.

12435402553651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12435402553651 is a deficient number, since it is larger than the sum of its proper divisors (3409937461133).

12435402553651 is a wasteful number, since it uses less digits than its factorization.

12435402553651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127324 (or 127313 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 12435402553651 in words is "twelve trillion, four hundred thirty-five billion, four hundred two million, five hundred fifty-three thousand, six hundred fifty-one".