400202332997 has 2 divisors, whose sum is σ = 400202332998. Its totient is φ = 400202332996.

The previous prime is 400202332993. The next prime is 400202333009. The reversal of 400202332997 is 799233202004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388180087681 + 12022245316 = 623041^2 + 109646^2 .

It is a cyclic number.

It is not a de Polignac number, because 400202332997 - 2² = 400202332993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400202332991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200101166498 + 200101166499.

It is an arithmetic number, because the mean of its divisors is an integer number (200101166499).

Almost surely, 2^400202332997 is an apocalyptic number.

It is an amenable number.

400202332997 is a deficient number, since it is larger than the sum of its proper divisors (1).

400202332997 is an equidigital number, since it uses as much as digits as its factorization.

400202332997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 400202332997 in words is "four hundred billion, two hundred two million, three hundred thirty-two thousand, nine hundred ninety-seven".