513228356081 has 8 divisors (see below), whose sum is σ = 588980498304. Its totient is φ = 438084665280.

The previous prime is 513228355979. The next prime is 513228356089. The reversal of 513228356081 is 180653822315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513228356081 is a prime.

It is a super-2 number, since 2×513228356081² (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 (513228356089) 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, 152111045 + ... + 152114418.

It is an arithmetic number, because the mean of its divisors is an integer number (73622562288).

Almost surely, 2^513228356081 is an apocalyptic number.

It is an amenable number.

513228356081 is a deficient number, since it is larger than the sum of its proper divisors (75752142223).

513228356081 is a wasteful number, since it uses less digits than its factorization.

513228356081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304225711.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 513228356081 in words is "five hundred thirteen billion, two hundred twenty-eight million, three hundred fifty-six thousand, eighty-one".