27705925458 has 12 divisors (see below), whose sum is σ = 60029505198. Its totient is φ = 9235308480.

The previous prime is 27705925397. The next prime is 27705925459. The reversal of 27705925458 is 85452950772.

27705925458 is a `hidden beast` number, since 2 + 7 + 7 + 0 + 5 + 92 + 545 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14688712809 + 13017212649 = 121197^2 + 114093^2 .

It is not an unprimeable number, because it can be changed into a prime (27705925459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 769609023 + ... + 769609058.

Almost surely, 2^27705925458 is an apocalyptic number.

27705925458 is an abundant number, since it is smaller than the sum of its proper divisors (32323579740).

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

27705925458 is a wasteful number, since it uses less digits than its factorization.

27705925458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539218089 (or 1539218086 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 27705925458 in words is "twenty-seven billion, seven hundred five million, nine hundred twenty-five thousand, four hundred fifty-eight".