77760005331 has 24 divisors (see below), whose sum is σ = 110904477376. Its totient is φ = 48432882960.

The previous prime is 77760005329. The next prime is 77760005333. The reversal of 77760005331 is 13350006777.

It is an interprime number because it is at equal distance from previous prime (77760005329) and next prime (77760005333).

It is not a de Polignac number, because 77760005331 - 2¹ = 77760005329 is a prime.

It is a super-2 number, since 2×77760005331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77760005331.

It is not an unprimeable number, because it can be changed into a prime (77760005333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501505 + ... + 637986.

Almost surely, 2^77760005331 is an apocalyptic number.

77760005331 is a deficient number, since it is larger than the sum of its proper divisors (33144472045).

77760005331 is a wasteful number, since it uses less digits than its factorization.

77760005331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139583 (or 1139560 counting only the distinct ones).

The product of its (nonzero) digits is 92610, while the sum is 39.

The spelling of 77760005331 in words is "seventy-seven billion, seven hundred sixty million, five thousand, three hundred thirty-one".