26455201551 has 48 divisors (see below), whose sum is σ = 41131084800. Its totient is φ = 16336022976.

The previous prime is 26455201499. The next prime is 26455201567. The reversal of 26455201551 is 15510255462.

26455201551 is a `hidden beast` number, since 2 + 645 + 5 + 2 + 0 + 1 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 26455201551 - 2⁹ = 26455201039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26455201351) 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, 1381921 + ... + 1400933.

It is an arithmetic number, because the mean of its divisors is an integer number (856897600).

Almost surely, 2^26455201551 is an apocalyptic number.

26455201551 is a deficient number, since it is larger than the sum of its proper divisors (14675883249).

26455201551 is a wasteful number, since it uses less digits than its factorization.

26455201551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19220 (or 19217 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 26455201551 in words is "twenty-six billion, four hundred fifty-five million, two hundred one thousand, five hundred fifty-one".