1942719603649 has 4 divisors (see below), whose sum is σ = 2119330476720. Its totient is φ = 1766108730580.

The previous prime is 1942719603637. The next prime is 1942719603653. The reversal of 1942719603649 is 9463069172491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1942719603649 - 2⁷ = 1942719603521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1942719603449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88305436519 + ... + 88305436540.

It is an arithmetic number, because the mean of its divisors is an integer number (529832619180).

Almost surely, 2^{1942719603649} is an apocalyptic number.

It is an amenable number.

1942719603649 is a deficient number, since it is larger than the sum of its proper divisors (176610873071).

1942719603649 is a wasteful number, since it uses less digits than its factorization.

1942719603649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176610873070.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 1942719603649 in words is "one trillion, nine hundred forty-two billion, seven hundred nineteen million, six hundred three thousand, six hundred forty-nine".