77761131157327 has 16 divisors (see below), whose sum is σ = 79807380681600. Its totient is φ = 75739205766240.

The previous prime is 77761131157321. The next prime is 77761131157343. The reversal of 77761131157327 is 72375113116777.

It is a cyclic number.

It is not a de Polignac number, because 77761131157327 - 2¹⁵ = 77761131124559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77761131157321) 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, 200112252 + ... + 200500462.

It is an arithmetic number, because the mean of its divisors is an integer number (4987961292600).

Almost surely, 2^{77761131157327} is an apocalyptic number.

77761131157327 is a deficient number, since it is larger than the sum of its proper divisors (2046249524273).

77761131157327 is a wasteful number, since it uses less digits than its factorization.

77761131157327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419526.

The product of its digits is 9075780, while the sum is 58.

The spelling of 77761131157327 in words is "seventy-seven trillion, seven hundred sixty-one billion, one hundred thirty-one million, one hundred fifty-seven thousand, three hundred twenty-seven".