8491428635 has 16 divisors (see below), whose sum is σ = 10321322880. Its totient is φ = 6705866880.

The previous prime is 8491428623. The next prime is 8491428691. The reversal of 8491428635 is 5368241948.

It is not a de Polignac number, because 8491428635 - 2²² = 8487234331 is a prime.

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, 118949 + ... + 176441.

It is an arithmetic number, because the mean of its divisors is an integer number (645082680).

Almost surely, 2^8491428635 is an apocalyptic number.

8491428635 is a deficient number, since it is larger than the sum of its proper divisors (1829894245).

8491428635 is a wasteful number, since it uses less digits than its factorization.

8491428635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57878.

The product of its digits is 1658880, while the sum is 50.

The square root of 8491428635 is about 92148.9480949186. The cubic root of 8491428635 is about 2040.1413328808.

The spelling of 8491428635 in words is "eight billion, four hundred ninety-one million, four hundred twenty-eight thousand, six hundred thirty-five".