8491154350577 has 16 divisors (see below), whose sum is σ = 9117968624640. Its totient is φ = 7878789015552.

The previous prime is 8491154350493. The next prime is 8491154350681. The reversal of 8491154350577 is 7750534511948.

It is a cyclic number.

It is not a de Polignac number, because 8491154350577 - 2²⁴ = 8491137573361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8491154355577) 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, 3793433 + ... + 5601110.

It is an arithmetic number, because the mean of its divisors is an integer number (569873039040).

Almost surely, 2^{8491154350577} is an apocalyptic number.

It is an amenable number.

8491154350577 is a deficient number, since it is larger than the sum of its proper divisors (626814274063).

8491154350577 is a wasteful number, since it uses less digits than its factorization.

8491154350577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395312.

The product of its (nonzero) digits is 21168000, while the sum is 59.

The spelling of 8491154350577 in words is "eight trillion, four hundred ninety-one billion, one hundred fifty-four million, three hundred fifty thousand, five hundred seventy-seven".