2180912399613 has 8 divisors (see below), whose sum is σ = 3230981332800. Its totient is φ = 1453941599724.

The previous prime is 2180912399591. The next prime is 2180912399623. The reversal of 2180912399613 is 3169932190812.

2180912399613 is a `hidden beast` number, since 2 + 1 + 8 + 0 + 9 + 12 + 3 + 9 + 9 + 613 = 666.

It is not a de Polignac number, because 2180912399613 - 2¹⁰ = 2180912398589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2180912399613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180912399623) 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, 40387266633 + ... + 40387266686.

It is an arithmetic number, because the mean of its divisors is an integer number (403872666600).

Almost surely, 2^{2180912399613} is an apocalyptic number.

It is an amenable number.

2180912399613 is a deficient number, since it is larger than the sum of its proper divisors (1050068933187).

2180912399613 is an equidigital number, since it uses as much as digits as its factorization.

2180912399613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80774533328 (or 80774533322 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 2180912399613 in words is "two trillion, one hundred eighty billion, nine hundred twelve million, three hundred ninety-nine thousand, six hundred thirteen".