8457201605 has 16 divisors (see below), whose sum is σ = 10481433600. Its totient is φ = 6544126080.

The previous prime is 8457201583. The next prime is 8457201611. The reversal of 8457201605 is 5061027548.

It is not a de Polignac number, because 8457201605 - 2⁸ = 8457201349 is a prime.

It is a super-2 number, since 2×8457201605² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310736 + ... + 336854.

It is an arithmetic number, because the mean of its divisors is an integer number (655089600).

Almost surely, 2^8457201605 is an apocalyptic number.

It is an amenable number.

8457201605 is a deficient number, since it is larger than the sum of its proper divisors (2024231995).

8457201605 is a wasteful number, since it uses less digits than its factorization.

8457201605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28244.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 8457201605 is about 91963.0447788676. The cubic root of 8457201605 is about 2037.3965254388.

The spelling of 8457201605 in words is "eight billion, four hundred fifty-seven million, two hundred one thousand, six hundred five".