653808790090 has 8 divisors (see below), whose sum is σ = 1176855822180. Its totient is φ = 261523516032.

The previous prime is 653808790073. The next prime is 653808790111. The reversal of 653808790090 is 90097808356.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 637798696129 + 16010093961 = 798623^2 + 126531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32690439495 + ... + 32690439514.

Almost surely, 2^653808790090 is an apocalyptic number.

653808790090 is a deficient number, since it is larger than the sum of its proper divisors (523047032090).

653808790090 is a wasteful number, since it uses less digits than its factorization.

653808790090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65380879016.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 653808790090 in words is "six hundred fifty-three billion, eight hundred eight million, seven hundred ninety thousand, ninety".