26457000564 has 12 divisors (see below), whose sum is σ = 61733001344. Its totient is φ = 8819000184.

The previous prime is 26457000523. The next prime is 26457000571. The reversal of 26457000564 is 46500075462.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102375012 + ... + 1102375035.

Almost surely, 2^26457000564 is an apocalyptic number.

It is an amenable number.

26457000564 is an abundant number, since it is smaller than the sum of its proper divisors (35276000780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26457000564 is a wasteful number, since it uses less digits than its factorization.

26457000564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204750054 (or 2204750052 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 26457000564 in words is "twenty-six billion, four hundred fifty-seven million, five hundred sixty-four", and thus it is an aban number.