26976005460 has 72 divisors (see below), whose sum is σ = 81866814120. Its totient is φ = 7190120448.

The previous prime is 26976005447. The next prime is 26976005477. The reversal of 26976005460 is 6450067962.

It can be written as a sum of positive squares in 4 ways, for example, as 1879742736 + 25096262724 = 43356^2 + 158418^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348024 + ... + 418416.

It is an arithmetic number, because the mean of its divisors is an integer number (1137039085).

Almost surely, 2^26976005460 is an apocalyptic number.

26976005460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26976005460 is an abundant number, since it is smaller than the sum of its proper divisors (54890808660).

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

26976005460 is a wasteful number, since it uses less digits than its factorization.

26976005460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72537 (or 72532 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 26976005460 in words is "twenty-six billion, nine hundred seventy-six million, five thousand, four hundred sixty".