12812837377 has 2 divisors, whose sum is σ = 12812837378. Its totient is φ = 12812837376.

The previous prime is 12812837347. The next prime is 12812837383. The reversal of 12812837377 is 77373821821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11656225296 + 1156612081 = 107964^2 + 34009^2 .

It is a cyclic number.

It is not a de Polignac number, because 12812837377 - 2⁷ = 12812837249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12812837377.

It is not a weakly prime, because it can be changed into another prime (12812837327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406418688 + 6406418689.

It is an arithmetic number, because the mean of its divisors is an integer number (6406418689).

Almost surely, 2^12812837377 is an apocalyptic number.

It is an amenable number.

12812837377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12812837377 is an equidigital number, since it uses as much as digits as its factorization.

12812837377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272, while the sum is 49.

The spelling of 12812837377 in words is "twelve billion, eight hundred twelve million, eight hundred thirty-seven thousand, three hundred seventy-seven".