57206477738 has 8 divisors (see below), whose sum is σ = 85850957700. Its totient is φ = 28589491840.

The previous prime is 57206477707. The next prime is 57206477743. The reversal of 57206477738 is 83777460275.

57206477738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56976257809 + 230219929 = 238697^2 + 15173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6868313 + ... + 6876636.

Almost surely, 2^57206477738 is an apocalyptic number.

57206477738 is a deficient number, since it is larger than the sum of its proper divisors (28644479962).

57206477738 is a wasteful number, since it uses less digits than its factorization.

57206477738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13747032.

The product of its (nonzero) digits is 13829760, while the sum is 56.

The spelling of 57206477738 in words is "fifty-seven billion, two hundred six million, four hundred seventy-seven thousand, seven hundred thirty-eight".