76140805775681 has 8 divisors (see below), whose sum is σ = 80148297206400. Its totient is φ = 72133322405040.

The previous prime is 76140805775621. The next prime is 76140805775729. The reversal of 76140805775681 is 18657750804167.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76140805775681 is a prime.

It is a super-2 number, since 2×76140805775681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76140805775621) 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, 32794616 + ... + 35039526.

It is an arithmetic number, because the mean of its divisors is an integer number (10018537150800).

Almost surely, 2^{76140805775681} is an apocalyptic number.

It is an amenable number.

76140805775681 is a deficient number, since it is larger than the sum of its proper divisors (4007491430719).

76140805775681 is a wasteful number, since it uses less digits than its factorization.

76140805775681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030039.

The product of its (nonzero) digits is 79027200, while the sum is 65.

The spelling of 76140805775681 in words is "seventy-six trillion, one hundred forty billion, eight hundred five million, seven hundred seventy-five thousand, six hundred eighty-one".