857481466049 has 16 divisors (see below), whose sum is σ = 945634166400. Its totient is φ = 772527079296.

The previous prime is 857481465983. The next prime is 857481466091. The reversal of 857481466049 is 940664184758.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-857481466049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857481465982 and 857481466000.

It is not an unprimeable number, because it can be changed into a prime (857481486049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155837 + ... + 1318805.

It is an arithmetic number, because the mean of its divisors is an integer number (59102135400).

Almost surely, 2^857481466049 is an apocalyptic number.

It is an amenable number.

857481466049 is a deficient number, since it is larger than the sum of its proper divisors (88152700351).

857481466049 is a wasteful number, since it uses less digits than its factorization.

857481466049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164344.

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 857481466049 in words is "eight hundred fifty-seven billion, four hundred eighty-one million, four hundred sixty-six thousand, forty-nine".