27291602451 has 16 divisors (see below), whose sum is σ = 38318983040. Its totient is φ = 17230060800.

The previous prime is 27291602419. The next prime is 27291602479. The reversal of 27291602451 is 15420619272.

It is not a de Polignac number, because 27291602451 - 2⁵ = 27291602419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27291602951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55476 + ... + 240126.

It is an arithmetic number, because the mean of its divisors is an integer number (2394936440).

Almost surely, 2^27291602451 is an apocalyptic number.

27291602451 is a deficient number, since it is larger than the sum of its proper divisors (11027380589).

27291602451 is a wasteful number, since it uses less digits than its factorization.

27291602451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187266.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 27291602451 in words is "twenty-seven billion, two hundred ninety-one million, six hundred two thousand, four hundred fifty-one".