12038664977 has 2 divisors, whose sum is σ = 12038664978. Its totient is φ = 12038664976.

The previous prime is 12038664949. The next prime is 12038664983. The reversal of 12038664977 is 77946683021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8911171201 + 3127493776 = 94399^2 + 55924^2 .

It is a cyclic number.

It is not a de Polignac number, because 12038664977 - 2¹⁸ = 12038402833 is a prime.

It is not a weakly prime, because it can be changed into another prime (12038664907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6019332488 + 6019332489.

It is an arithmetic number, because the mean of its divisors is an integer number (6019332489).

Almost surely, 2^12038664977 is an apocalyptic number.

It is an amenable number.

12038664977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12038664977 is an equidigital number, since it uses as much as digits as its factorization.

12038664977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 12038664977 in words is "twelve billion, thirty-eight million, six hundred sixty-four thousand, nine hundred seventy-seven".