77127140605466 has 64 divisors (see below), whose sum is σ = 132638410483200. Its totient is φ = 32949583958016.

The previous prime is 77127140605409. The next prime is 77127140605477. The reversal of 77127140605466 is 66450604172177.

It is a super-2 number, since 2×77127140605466² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32284277000 + ... + 32284279388.

It is an arithmetic number, because the mean of its divisors is an integer number (2072475163800).

Almost surely, 2^{77127140605466} is an apocalyptic number.

77127140605466 is a deficient number, since it is larger than the sum of its proper divisors (55511269877734).

77127140605466 is a wasteful number, since it uses less digits than its factorization.

77127140605466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7023.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 77127140605466 in words is "seventy-seven trillion, one hundred twenty-seven billion, one hundred forty million, six hundred five thousand, four hundred sixty-six".