653797384492 has 96 divisors (see below), whose sum is σ = 1402020264960. Its totient is φ = 260390000640.

The previous prime is 653797384463. The next prime is 653797384517. The reversal of 653797384492 is 294483797356.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31466067 + ... + 31486837.

It is an arithmetic number, because the mean of its divisors is an integer number (14604377760).

Almost surely, 2^653797384492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653797384492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701010132480).

653797384492 is an abundant number, since it is smaller than the sum of its proper divisors (748222880468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653797384492 is a wasteful number, since it uses less digits than its factorization.

653797384492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21631 (or 21629 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 67.

The spelling of 653797384492 in words is "six hundred fifty-three billion, seven hundred ninety-seven million, three hundred eighty-four thousand, four hundred ninety-two".