400364951629 has 2 divisors, whose sum is σ = 400364951630. Its totient is φ = 400364951628.

The previous prime is 400364951599. The next prime is 400364951633. The reversal of 400364951629 is 926159463004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380701340100 + 19663611529 = 617010^2 + 140227^2 .

It is a cyclic number.

It is not a de Polignac number, because 400364951629 - 2⁷ = 400364951501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400364951029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200182475814 + 200182475815.

It is an arithmetic number, because the mean of its divisors is an integer number (200182475815).

Almost surely, 2^400364951629 is an apocalyptic number.

It is an amenable number.

400364951629 is a deficient number, since it is larger than the sum of its proper divisors (1).

400364951629 is an equidigital number, since it uses as much as digits as its factorization.

400364951629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 400364951629 in words is "four hundred billion, three hundred sixty-four million, nine hundred fifty-one thousand, six hundred twenty-nine".