21136649300375 has 32 divisors (see below), whose sum is σ = 31186449290880. Its totient is φ = 13993919520000.

The previous prime is 21136649300341. The next prime is 21136649300381. The reversal of 21136649300375 is 57300394663112.

It is not a de Polignac number, because 21136649300375 - 2²⁴ = 21136632523159 is a prime.

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, 416460326 + ... + 416511075.

It is an arithmetic number, because the mean of its divisors is an integer number (974576540340).

Almost surely, 2^{21136649300375} is an apocalyptic number.

21136649300375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21136649300375 is a deficient number, since it is larger than the sum of its proper divisors (10049799990505).

21136649300375 is an equidigital number, since it uses as much as digits as its factorization.

21136649300375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832971452 (or 832971442 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 21136649300375 in words is "twenty-one trillion, one hundred thirty-six billion, six hundred forty-nine million, three hundred thousand, three hundred seventy-five".