654732574491 has 4 divisors (see below), whose sum is σ = 872976765992. Its totient is φ = 436488382992.

The previous prime is 654732574481. The next prime is 654732574537. The reversal of 654732574491 is 194475237456.

654732574491 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 654732574491 - 2¹⁸ = 654732312347 is a prime.

It is a super-2 number, since 2×654732574491² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654732574481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109122095746 + ... + 109122095751.

It is an arithmetic number, because the mean of its divisors is an integer number (218244191498).

Almost surely, 2^654732574491 is an apocalyptic number.

654732574491 is a deficient number, since it is larger than the sum of its proper divisors (218244191501).

654732574491 is a wasteful number, since it uses less digits than its factorization.

654732574491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218244191500.

The product of its digits is 25401600, while the sum is 57.

The spelling of 654732574491 in words is "six hundred fifty-four billion, seven hundred thirty-two million, five hundred seventy-four thousand, four hundred ninety-one".