1612868642391 has 16 divisors (see below), whose sum is σ = 2277309600000. Its totient is φ = 1011854421888.

The previous prime is 1612868642347. The next prime is 1612868642417. The reversal of 1612868642391 is 1932468682161.

It is not a de Polignac number, because 1612868642391 - 2¹¹ = 1612868640343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612868642191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1843641 + ... + 2573858.

It is an arithmetic number, because the mean of its divisors is an integer number (142331850000).

Almost surely, 2^{1612868642391} is an apocalyptic number.

1612868642391 is a deficient number, since it is larger than the sum of its proper divisors (664440957609).

1612868642391 is a wasteful number, since it uses less digits than its factorization.

1612868642391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424678.

The product of its digits is 5971968, while the sum is 57.

The spelling of 1612868642391 in words is "one trillion, six hundred twelve billion, eight hundred sixty-eight million, six hundred forty-two thousand, three hundred ninety-one".