77735151162681 has 4 divisors (see below), whose sum is σ = 103646868216912. Its totient is φ = 51823434108452.

The previous prime is 77735151162659. The next prime is 77735151162703. The reversal of 77735151162681 is 18626115153777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (77735151162659) and next prime (77735151162703).

It is a cyclic number.

It is not a de Polignac number, because 77735151162681 - 2⁹ = 77735151162169 is a prime.

It is a super-2 number, since 2×77735151162681² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77735151162601) 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 3 ways as a sum of consecutive naturals, for example, 12955858527111 + ... + 12955858527116.

It is an arithmetic number, because the mean of its divisors is an integer number (25911717054228).

Almost surely, 2^{77735151162681} is an apocalyptic number.

It is an amenable number.

77735151162681 is a deficient number, since it is larger than the sum of its proper divisors (25911717054231).

77735151162681 is a wasteful number, since it uses less digits than its factorization.

77735151162681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25911717054230.

The product of its digits is 14817600, while the sum is 60.

The spelling of 77735151162681 in words is "seventy-seven trillion, seven hundred thirty-five billion, one hundred fifty-one million, one hundred sixty-two thousand, six hundred eighty-one".