402151545617 has 2 divisors, whose sum is σ = 402151545618. Its totient is φ = 402151545616.

The previous prime is 402151545613. The next prime is 402151545647. The reversal of 402151545617 is 716545151204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273608501776 + 128543043841 = 523076^2 + 358529^2 .

It is a cyclic number.

It is not a de Polignac number, because 402151545617 - 2² = 402151545613 is a prime.

It is not a weakly prime, because it can be changed into another prime (402151545611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201075772808 + 201075772809.

It is an arithmetic number, because the mean of its divisors is an integer number (201075772809).

Almost surely, 2^402151545617 is an apocalyptic number.

It is an amenable number.

402151545617 is a deficient number, since it is larger than the sum of its proper divisors (1).

402151545617 is an equidigital number, since it uses as much as digits as its factorization.

402151545617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 402151545617 in words is "four hundred two billion, one hundred fifty-one million, five hundred forty-five thousand, six hundred seventeen".