613125299521 has 8 divisors (see below), whose sum is σ = 701869022720. Its totient is φ = 524670175008.

The previous prime is 613125299509. The next prime is 613125299557. The reversal of 613125299521 is 125992521316.

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

It is not a de Polignac number, because 613125299521 - 2²¹ = 613123202369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613125239521) 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, 72145116 + ... + 72153613.

It is an arithmetic number, because the mean of its divisors is an integer number (87733627840).

Almost surely, 2^613125299521 is an apocalyptic number.

It is an amenable number.

613125299521 is a deficient number, since it is larger than the sum of its proper divisors (88743723199).

613125299521 is a wasteful number, since it uses less digits than its factorization.

613125299521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144299343.

The product of its digits is 291600, while the sum is 46.

The spelling of 613125299521 in words is "six hundred thirteen billion, one hundred twenty-five million, two hundred ninety-nine thousand, five hundred twenty-one".