26997084720 has 60 divisors (see below), whose sum is σ = 90665211936. Its totient is φ = 7199222400.

The previous prime is 26997084703. The next prime is 26997084799. The reversal of 26997084720 is 2748079962.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18747256 + ... + 18748695.

Almost surely, 2^26997084720 is an apocalyptic number.

26997084720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26997084720 is an abundant number, since it is smaller than the sum of its proper divisors (63668127216).

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

26997084720 is a wasteful number, since it uses less digits than its factorization.

26997084720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37495970 (or 37495961 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 26997084720 in words is "twenty-six billion, nine hundred ninety-seven million, eighty-four thousand, seven hundred twenty".