654881036491 has 12 divisors (see below), whose sum is σ = 719854033752. Its totient is φ = 595324796000.

The previous prime is 654881036483. The next prime is 654881036497. The reversal of 654881036491 is 194630188456.

It is not a de Polignac number, because 654881036491 - 2³ = 654881036483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654881036497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3930876 + ... + 4094086.

It is an arithmetic number, because the mean of its divisors is an integer number (59987836146).

Almost surely, 2^654881036491 is an apocalyptic number.

654881036491 is a deficient number, since it is larger than the sum of its proper divisors (64972997261).

654881036491 is a wasteful number, since it uses less digits than its factorization.

654881036491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196394 (or 196383 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 654881036491 in words is "six hundred fifty-four billion, eight hundred eighty-one million, thirty-six thousand, four hundred ninety-one".