26464746945 has 64 divisors (see below), whose sum is σ = 52144694784. Its totient is φ = 11161221120.

The previous prime is 26464746937. The next prime is 26464746967. The reversal of 26464746945 is 54964746462.

It is a happy number.

It is not a de Polignac number, because 26464746945 - 2³ = 26464746937 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3016365 + ... + 3025125.

It is an arithmetic number, because the mean of its divisors is an integer number (814760856).

Almost surely, 2^26464746945 is an apocalyptic number.

It is an amenable number.

26464746945 is a deficient number, since it is larger than the sum of its proper divisors (25679947839).

26464746945 is a wasteful number, since it uses less digits than its factorization.

26464746945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002.

The product of its digits is 34836480, while the sum is 57.

The spelling of 26464746945 in words is "twenty-six billion, four hundred sixty-four million, seven hundred forty-six thousand, nine hundred forty-five".