1815653130013 has 8 divisors (see below), whose sum is σ = 1818308448000. Its totient is φ = 1812999752208.

The previous prime is 1815653129999. The next prime is 1815653130077. The reversal of 1815653130013 is 3100313565181.

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

It is a cyclic number.

It is not a de Polignac number, because 1815653130013 - 2¹⁷ = 1815652998941 is a prime.

It is a super-3 number, since 3×1815653130013³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1815653131013) 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, 1393263 + ... + 2360611.

It is an arithmetic number, because the mean of its divisors is an integer number (227288556000).

Almost surely, 2^{1815653130013} is an apocalyptic number.

It is an amenable number.

1815653130013 is a deficient number, since it is larger than the sum of its proper divisors (2655317987).

1815653130013 is a wasteful number, since it uses less digits than its factorization.

1815653130013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970091.

The product of its (nonzero) digits is 32400, while the sum is 37.

Adding to 1815653130013 its reverse (3100313565181), we get a palindrome (4915966695194).

The spelling of 1815653130013 in words is "one trillion, eight hundred fifteen billion, six hundred fifty-three million, one hundred thirty thousand, thirteen".