1867650312413 has 2 divisors, whose sum is σ = 1867650312414. Its totient is φ = 1867650312412.

The previous prime is 1867650312391. The next prime is 1867650312469. The reversal of 1867650312413 is 3142130567681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1656157938724 + 211492373689 = 1286918^2 + 459883^2 .

It is a cyclic number.

It is not a de Polignac number, because 1867650312413 - 2¹² = 1867650308317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1867650312613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 933825156206 + 933825156207.

It is an arithmetic number, because the mean of its divisors is an integer number (933825156207).

Almost surely, 2^{1867650312413} is an apocalyptic number.

It is an amenable number.

1867650312413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1867650312413 is an equidigital number, since it uses as much as digits as its factorization.

1867650312413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 1867650312413 in words is "one trillion, eight hundred sixty-seven billion, six hundred fifty million, three hundred twelve thousand, four hundred thirteen".