653254987973 has 8 divisors (see below), whose sum is σ = 746802912192. Its totient is φ = 559763509536.

The previous prime is 653254987961. The next prime is 653254987991. The reversal of 653254987973 is 379789452356.

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

It is a de Polignac number, because none of the positive numbers 2^k-653254987973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653254987933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14086640 + ... + 14132937.

It is an arithmetic number, because the mean of its divisors is an integer number (93350364024).

Almost surely, 2^653254987973 is an apocalyptic number.

It is an amenable number.

653254987973 is a deficient number, since it is larger than the sum of its proper divisors (93547924219).

653254987973 is a wasteful number, since it uses less digits than its factorization.

653254987973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28222891.

The product of its digits is 342921600, while the sum is 68.

The spelling of 653254987973 in words is "six hundred fifty-three billion, two hundred fifty-four million, nine hundred eighty-seven thousand, nine hundred seventy-three".