402644315045 has 64 divisors (see below), whose sum is σ = 599135992320. Its totient is φ = 253574986752.

The previous prime is 402644315039. The next prime is 402644315089. The reversal of 402644315045 is 540513446204.

It is a cyclic number.

It is not a de Polignac number, because 402644315045 - 2⁶ = 402644314981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6786047 + ... + 6845123.

It is an arithmetic number, because the mean of its divisors is an integer number (9361499880).

Almost surely, 2^402644315045 is an apocalyptic number.

It is an amenable number.

402644315045 is a deficient number, since it is larger than the sum of its proper divisors (196491677275).

402644315045 is a wasteful number, since it uses less digits than its factorization.

402644315045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59422.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 402644315045 in words is "four hundred two billion, six hundred forty-four million, three hundred fifteen thousand, forty-five".