77155463361 has 8 divisors (see below), whose sum is σ = 102897081504. Its totient is φ = 51425410400.

The previous prime is 77155463311. The next prime is 77155463369. The reversal of 77155463361 is 16336455177.

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 77155463361 - 2⁹ = 77155462849 is a prime.

It is a super-2 number, since 2×77155463361² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 77155463361.

It is not an unprimeable number, because it can be changed into a prime (77155463369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2875716 + ... + 2902421.

It is an arithmetic number, because the mean of its divisors is an integer number (12862135188).

Almost surely, 2^77155463361 is an apocalyptic number.

It is an amenable number.

77155463361 is a deficient number, since it is larger than the sum of its proper divisors (25741618143).

77155463361 is a wasteful number, since it uses less digits than its factorization.

77155463361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782591.

The product of its digits is 1587600, while the sum is 48.

The spelling of 77155463361 in words is "seventy-seven billion, one hundred fifty-five million, four hundred sixty-three thousand, three hundred sixty-one".