11542642619 has 2 divisors, whose sum is σ = 11542642620. Its totient is φ = 11542642618.

The previous prime is 11542642603. The next prime is 11542642663. The reversal of 11542642619 is 91624624511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11542642619 - 2⁴ = 11542642603 is a prime.

It is a super-2 number, since 2×11542642619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11542242619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771321309 + 5771321310.

It is an arithmetic number, because the mean of its divisors is an integer number (5771321310).

Almost surely, 2^11542642619 is an apocalyptic number.

11542642619 is a deficient number, since it is larger than the sum of its proper divisors (1).

11542642619 is an equidigital number, since it uses as much as digits as its factorization.

11542642619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The spelling of 11542642619 in words is "eleven billion, five hundred forty-two million, six hundred forty-two thousand, six hundred nineteen".