12377064961 has 2 divisors, whose sum is σ = 12377064962. Its totient is φ = 12377064960.

The previous prime is 12377064943. The next prime is 12377065007. The reversal of 12377064961 is 16946077321.

It is an a-pointer prime, because the next prime (12377065007) can be obtained adding 12377064961 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10245488400 + 2131576561 = 101220^2 + 46169^2 .

It is a cyclic number.

It is not a de Polignac number, because 12377064961 - 2⁹ = 12377064449 is a prime.

It is not a weakly prime, because it can be changed into another prime (12377064941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6188532480 + 6188532481.

It is an arithmetic number, because the mean of its divisors is an integer number (6188532481).

Almost surely, 2^12377064961 is an apocalyptic number.

It is an amenable number.

12377064961 is a deficient number, since it is larger than the sum of its proper divisors (1).

12377064961 is an equidigital number, since it uses as much as digits as its factorization.

12377064961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 12377064961 in words is "twelve billion, three hundred seventy-seven million, sixty-four thousand, nine hundred sixty-one".