771996234137 has 8 divisors (see below), whose sum is σ = 796924788480. Its totient is φ = 747069270480.

The previous prime is 771996234131. The next prime is 771996234143. The reversal of 771996234137 is 731432699177.

It is an interprime number because it is at equal distance from previous prime (771996234131) and next prime (771996234143).

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

It is a cyclic number.

It is not a de Polignac number, because 771996234137 - 2³² = 767701266841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (771996234131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630914 + ... + 1393572.

It is an arithmetic number, because the mean of its divisors is an integer number (99615598560).

Almost surely, 2^771996234137 is an apocalyptic number.

It is an amenable number.

771996234137 is a deficient number, since it is larger than the sum of its proper divisors (24928554343).

771996234137 is a wasteful number, since it uses less digits than its factorization.

771996234137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795343.

The product of its digits is 12002256, while the sum is 59.

The spelling of 771996234137 in words is "seven hundred seventy-one billion, nine hundred ninety-six million, two hundred thirty-four thousand, one hundred thirty-seven".