76157785061 has 2 divisors, whose sum is σ = 76157785062. Its totient is φ = 76157785060.

The previous prime is 76157785049. The next prime is 76157785147. The reversal of 76157785061 is 16058775167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60680932225 + 15476852836 = 246335^2 + 124406^2 .

It is a cyclic number.

It is not a de Polignac number, because 76157785061 - 2¹⁴ = 76157768677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76157784994 and 76157785012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76157785031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38078892530 + 38078892531.

It is an arithmetic number, because the mean of its divisors is an integer number (38078892531).

Almost surely, 2^76157785061 is an apocalyptic number.

It is an amenable number.

76157785061 is a deficient number, since it is larger than the sum of its proper divisors (1).

76157785061 is an equidigital number, since it uses as much as digits as its factorization.

76157785061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2469600, while the sum is 53.

The spelling of 76157785061 in words is "seventy-six billion, one hundred fifty-seven million, seven hundred eighty-five thousand, sixty-one".