77136005651 has 4 divisors (see below), whose sum is σ = 77159590704. Its totient is φ = 77112420600.

The previous prime is 77136005591. The next prime is 77136005711. The reversal of 77136005651 is 15650063177.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15650063177 = 7 ⋅2235723311.

It is an interprime number because it is at equal distance from previous prime (77136005591) and next prime (77136005711).

It is a cyclic number.

It is not a de Polignac number, because 77136005651 - 2²⁶ = 77068896787 is a prime.

It is a super-2 number, since 2×77136005651² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77136005599 and 77136005608.

It is not an unprimeable number, because it can be changed into a prime (77136005251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11787620 + ... + 11794161.

It is an arithmetic number, because the mean of its divisors is an integer number (19289897676).

Almost surely, 2^77136005651 is an apocalyptic number.

77136005651 is a deficient number, since it is larger than the sum of its proper divisors (23585053).

77136005651 is a wasteful number, since it uses less digits than its factorization.

77136005651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23585052.

The product of its (nonzero) digits is 132300, while the sum is 41.

The spelling of 77136005651 in words is "seventy-seven billion, one hundred thirty-six million, five thousand, six hundred fifty-one".