77763651560231 has 16 divisors (see below), whose sum is σ = 95710006199808. Its totient is φ = 61526708373600.

The previous prime is 77763651560227. The next prime is 77763651560233. The reversal of 77763651560231 is 13206515636777.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 77763651560231 - 2² = 77763651560227 is a prime.

It is a super-2 number, since 2×77763651560231² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77763651560233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5898686 + ... + 13795716.

It is an arithmetic number, because the mean of its divisors is an integer number (5981875387488).

Almost surely, 2^{77763651560231} is an apocalyptic number.

77763651560231 is a deficient number, since it is larger than the sum of its proper divisors (17946354639577).

77763651560231 is a wasteful number, since it uses less digits than its factorization.

77763651560231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8005262.

The product of its (nonzero) digits is 33339600, while the sum is 59.

The spelling of 77763651560231 in words is "seventy-seven trillion, seven hundred sixty-three billion, six hundred fifty-one million, five hundred sixty thousand, two hundred thirty-one".