77461051 has 2 divisors, whose sum is σ = 77461052. Its totient is φ = 77461050.

The previous prime is 77461049. The next prime is 77461067. The reversal of 77461051 is 15016477.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77461051 - 2¹ = 77461049 is a prime.

Together with 77461049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (77461451) 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, 38730525 + 38730526.

It is an arithmetic number, because the mean of its divisors is an integer number (38730526).

Almost surely, 2^77461051 is an apocalyptic number.

77461051 is a deficient number, since it is larger than the sum of its proper divisors (1).

77461051 is an equidigital number, since it uses as much as digits as its factorization.

77461051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 77461051 is about 8801.1959982721. The cubic root of 77461051 is about 426.2795137844.

The spelling of 77461051 in words is "seventy-seven million, four hundred sixty-one thousand, fifty-one".