402044004432977 has 2 divisors, whose sum is σ = 402044004432978. Its totient is φ = 402044004432976.

The previous prime is 402044004432937. The next prime is 402044004433007. The reversal of 402044004432977 is 779234400440204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362313560735296 + 39730443697681 = 19034536^2 + 6303209^2 .

It is a cyclic number.

It is not a de Polignac number, because 402044004432977 - 2¹⁸ = 402044004170833 is a prime.

It is not a weakly prime, because it can be changed into another prime (402044004432907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201022002216488 + 201022002216489.

It is an arithmetic number, because the mean of its divisors is an integer number (201022002216489).

Almost surely, 2^{402044004432977} is an apocalyptic number.

It is an amenable number.

402044004432977 is a deficient number, since it is larger than the sum of its proper divisors (1).

402044004432977 is an equidigital number, since it uses as much as digits as its factorization.

402044004432977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 50.

The spelling of 402044004432977 in words is "four hundred two trillion, forty-four billion, four million, four hundred thirty-two thousand, nine hundred seventy-seven".