26512136451 has 12 divisors (see below), whose sum is σ = 38587640520. Its totient is φ = 17539835040.

The previous prime is 26512136447. The next prime is 26512136461. The reversal of 26512136451 is 15463121562.

26512136451 is a `hidden beast` number, since 2 + 6 + 5 + 1 + 2 + 1 + 3 + 645 + 1 = 666.

It is not a de Polignac number, because 26512136451 - 2² = 26512136447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26512136461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11242306 + ... + 11244663.

It is an arithmetic number, because the mean of its divisors is an integer number (3215636710).

Almost surely, 2^26512136451 is an apocalyptic number.

26512136451 is a deficient number, since it is larger than the sum of its proper divisors (12075504069).

26512136451 is a wasteful number, since it uses less digits than its factorization.

26512136451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22487106 (or 22487103 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 26512136451 in words is "twenty-six billion, five hundred twelve million, one hundred thirty-six thousand, four hundred fifty-one".