27770246451 has 12 divisors (see below), whose sum is σ = 40133950480. Its totient is φ = 18503633520.

The previous prime is 27770246411. The next prime is 27770246477. The reversal of 27770246451 is 15464207772.

27770246451 is a `hidden beast` number, since 2 + 77 + 70 + 2 + 464 + 51 = 666.

It is not a de Polignac number, because 27770246451 - 2¹⁷ = 27770115379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27770246397 and 27770246406.

It is not an unprimeable number, because it can be changed into a prime (27770246411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804160 + ... + 837981.

Almost surely, 2^27770246451 is an apocalyptic number.

27770246451 is a deficient number, since it is larger than the sum of its proper divisors (12363704029).

27770246451 is a wasteful number, since it uses less digits than its factorization.

27770246451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644026 (or 1644023 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 27770246451 in words is "twenty-seven billion, seven hundred seventy million, two hundred forty-six thousand, four hundred fifty-one".