76157785147 has 2 divisors, whose sum is σ = 76157785148. Its totient is φ = 76157785146.

The previous prime is 76157785061. The next prime is 76157785181. The reversal of 76157785147 is 74158775167.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76157785147 - 2³⁵ = 41798046779 is a prime.

It is a super-2 number, since 2×76157785147² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76157785091 and 76157785100.

It is not a weakly prime, because it can be changed into another prime (76157785447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38078892573 + 38078892574.

It is an arithmetic number, because the mean of its divisors is an integer number (38078892574).

Almost surely, 2^76157785147 is an apocalyptic number.

76157785147 is a deficient number, since it is larger than the sum of its proper divisors (1).

76157785147 is an equidigital number, since it uses as much as digits as its factorization.

76157785147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11524800, while the sum is 58.

Subtracting from 76157785147 its sum of digits (58), we obtain a square (76157785089 = 275967²).

The spelling of 76157785147 in words is "seventy-six billion, one hundred fifty-seven million, seven hundred eighty-five thousand, one hundred forty-seven".