405257856316 has 6 divisors (see below), whose sum is σ = 709201248560. Its totient is φ = 202628928156.

The previous prime is 405257856281. The next prime is 405257856317. The reversal of 405257856316 is 613658752504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405257856317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50657232036 + ... + 50657232043.

Almost surely, 2^405257856316 is an apocalyptic number.

It is an amenable number.

405257856316 is a deficient number, since it is larger than the sum of its proper divisors (303943392244).

405257856316 is a wasteful number, since it uses less digits than its factorization.

405257856316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101314464083 (or 101314464081 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 405257856316 in words is "four hundred five billion, two hundred fifty-seven million, eight hundred fifty-six thousand, three hundred sixteen".