77057854651 has 2 divisors, whose sum is σ = 77057854652. Its totient is φ = 77057854650.

The previous prime is 77057854649. The next prime is 77057854667. The reversal of 77057854651 is 15645875077.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77057854651 - 2¹ = 77057854649 is a prime.

Together with 77057854649, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 77057854592 and 77057854601.

It is not a weakly prime, because it can be changed into another prime (77057854631) 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 as a sum of consecutive naturals, namely, 38528927325 + 38528927326.

It is an arithmetic number, because the mean of its divisors is an integer number (38528927326).

Almost surely, 2^77057854651 is an apocalyptic number.

77057854651 is a deficient number, since it is larger than the sum of its proper divisors (1).

77057854651 is an equidigital number, since it uses as much as digits as its factorization.

77057854651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232000, while the sum is 55.

The spelling of 77057854651 in words is "seventy-seven billion, fifty-seven million, eight hundred fifty-four thousand, six hundred fifty-one".