6857772692 has 6 divisors (see below), whose sum is σ = 12001102218. Its totient is φ = 3428886344.

The previous prime is 6857772689. The next prime is 6857772703. The reversal of 6857772692 is 2962777586.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6380175376 + 477597316 = 79876^2 + 21854^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 857221583 + ... + 857221590.

It is an arithmetic number, because the mean of its divisors is an integer number (2000183703).

Almost surely, 2^6857772692 is an apocalyptic number.

It is an amenable number.

6857772692 is a deficient number, since it is larger than the sum of its proper divisors (5143329526).

6857772692 is a wasteful number, since it uses less digits than its factorization.

6857772692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714443177 (or 1714443175 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 59.

The square root of 6857772692 is about 82811.6700230106. The cubic root of 6857772692 is about 1899.8866684017.

The spelling of 6857772692 in words is "six billion, eight hundred fifty-seven million, seven hundred seventy-two thousand, six hundred ninety-two".