23147159377 has 2 divisors, whose sum is σ = 23147159378. Its totient is φ = 23147159376.

The previous prime is 23147159327. The next prime is 23147159381. The reversal of 23147159377 is 77395174132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23055689281 + 91470096 = 151841^2 + 9564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23147159377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23147159377.

It is not a weakly prime, because it can be changed into another prime (23147159327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11573579688 + 11573579689.

It is an arithmetic number, because the mean of its divisors is an integer number (11573579689).

Almost surely, 2^23147159377 is an apocalyptic number.

It is an amenable number.

23147159377 is a deficient number, since it is larger than the sum of its proper divisors (1).

23147159377 is an equidigital number, since it uses as much as digits as its factorization.

23147159377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 49.

The spelling of 23147159377 in words is "twenty-three billion, one hundred forty-seven million, one hundred fifty-nine thousand, three hundred seventy-seven".