857017551401602 has 8 divisors (see below), whose sum is σ = 1290528375068556. Its totient is φ = 426841426378752.

The previous prime is 857017551401591. The next prime is 857017551401617. The reversal of 857017551401602 is 206104155710758.

It can be written as a sum of positive squares in 2 ways, for example, as 606124654920801 + 250892896480801 = 24619599^2 + 15839599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 857017551401602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833674660383 + ... + 833674661410.

Almost surely, 2^{857017551401602} is an apocalyptic number.

857017551401602 is a deficient number, since it is larger than the sum of its proper divisors (433510823666954).

857017551401602 is a wasteful number, since it uses less digits than its factorization.

857017551401602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667349322052.

The product of its (nonzero) digits is 2352000, while the sum is 52.

The spelling of 857017551401602 in words is "eight hundred fifty-seven trillion, seventeen billion, five hundred fifty-one million, four hundred one thousand, six hundred two".