11615413623491 has 2 divisors, whose sum is σ = 11615413623492. Its totient is φ = 11615413623490.

The previous prime is 11615413623409. The next prime is 11615413623493. The reversal of 11615413623491 is 19432631451611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11615413623491 - 2³⁰ = 11614339881667 is a prime.

Together with 11615413623493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11615413623493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5807706811745 + 5807706811746.

It is an arithmetic number, because the mean of its divisors is an integer number (5807706811746).

Almost surely, 2^{11615413623491} is an apocalyptic number.

11615413623491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11615413623491 is an equidigital number, since it uses as much as digits as its factorization.

11615413623491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The spelling of 11615413623491 in words is "eleven trillion, six hundred fifteen billion, four hundred thirteen million, six hundred twenty-three thousand, four hundred ninety-one".