400350052997 has 2 divisors, whose sum is σ = 400350052998. Its totient is φ = 400350052996.

The previous prime is 400350052981. The next prime is 400350053029. The reversal of 400350052997 is 799250053004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236459485441 + 163890567556 = 486271^2 + 404834^2 .

It is a cyclic number.

It is not a de Polignac number, because 400350052997 - 2⁴ = 400350052981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400350052397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200175026498 + 200175026499.

It is an arithmetic number, because the mean of its divisors is an integer number (200175026499).

Almost surely, 2^400350052997 is an apocalyptic number.

It is an amenable number.

400350052997 is a deficient number, since it is larger than the sum of its proper divisors (1).

400350052997 is an equidigital number, since it uses as much as digits as its factorization.

400350052997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 400350052997 in words is "four hundred billion, three hundred fifty million, fifty-two thousand, nine hundred ninety-seven".