27709072475 has 36 divisors (see below), whose sum is σ = 40040912664. Its totient is φ = 18966286080.

The previous prime is 27709072439. The next prime is 27709072499. The reversal of 27709072475 is 57427090772.

It is a happy number.

It is not a de Polignac number, because 27709072475 - 2⁸ = 27709072219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 669587 + ... + 709763.

It is an arithmetic number, because the mean of its divisors is an integer number (1112247574).

Almost surely, 2^27709072475 is an apocalyptic number.

27709072475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27709072475 is a deficient number, since it is larger than the sum of its proper divisors (12331840189).

27709072475 is a wasteful number, since it uses less digits than its factorization.

27709072475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40764 (or 40752 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 27709072475 in words is "twenty-seven billion, seven hundred nine million, seventy-two thousand, four hundred seventy-five".