26900392464 has 160 divisors (see below), whose sum is σ = 84372278400. Its totient is φ = 8138211840.

The previous prime is 26900392439. The next prime is 26900392487. The reversal of 26900392464 is 46429300962.

It is a super-2 number, since 2×26900392464² (a number of 22 digits) contains 22 as substring.

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, 3098722 + ... + 3107390.

It is an arithmetic number, because the mean of its divisors is an integer number (527326740).

Almost surely, 2^26900392464 is an apocalyptic number.

26900392464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26900392464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42186139200).

26900392464 is an abundant number, since it is smaller than the sum of its proper divisors (57471885936).

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

26900392464 is a wasteful number, since it uses less digits than its factorization.

26900392464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350 (or 9338 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 26900392464 in words is "twenty-six billion, nine hundred million, three hundred ninety-two thousand, four hundred sixty-four".