2190542979619 has 2 divisors, whose sum is σ = 2190542979620. Its totient is φ = 2190542979618.

The previous prime is 2190542979601. The next prime is 2190542979629. The reversal of 2190542979619 is 9169792450912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2190542979619 - 2⁵ = 2190542979587 is a prime.

It is a super-2 number, since 2×2190542979619² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2190542979629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095271489809 + 1095271489810.

It is an arithmetic number, because the mean of its divisors is an integer number (1095271489810).

Almost surely, 2^{2190542979619} is an apocalyptic number.

2190542979619 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190542979619 is an equidigital number, since it uses as much as digits as its factorization.

2190542979619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22044960, while the sum is 64.

The spelling of 2190542979619 in words is "two trillion, one hundred ninety billion, five hundred forty-two million, nine hundred seventy-nine thousand, six hundred nineteen".