27199970742 has 16 divisors (see below), whose sum is σ = 62171361792. Its totient is φ = 7771420200.

The previous prime is 27199970723. The next prime is 27199970779. The reversal of 27199970742 is 24707999172.

27199970742 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323809134 + ... + 323809217.

It is an arithmetic number, because the mean of its divisors is an integer number (3885710112).

Almost surely, 2^27199970742 is an apocalyptic number.

27199970742 is an abundant number, since it is smaller than the sum of its proper divisors (34971391050).

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

27199970742 is a wasteful number, since it uses less digits than its factorization.

27199970742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647618363.

The product of its (nonzero) digits is 4000752, while the sum is 57.

The spelling of 27199970742 in words is "twenty-seven billion, one hundred ninety-nine million, nine hundred seventy thousand, seven hundred forty-two".