2432791686661 has 32 divisors (see below), whose sum is σ = 3157292079360. Its totient is φ = 1824213021696.

The previous prime is 2432791686643. The next prime is 2432791686667. The reversal of 2432791686661 is 1666861972342.

It is a cyclic number.

It is not a de Polignac number, because 2432791686661 - 2⁵ = 2432791686629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2432791686661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2432791686667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10030926 + ... + 10270591.

It is an arithmetic number, because the mean of its divisors is an integer number (98665377480).

Almost surely, 2^{2432791686661} is an apocalyptic number.

It is an amenable number.

2432791686661 is a deficient number, since it is larger than the sum of its proper divisors (724500392699).

2432791686661 is a wasteful number, since it uses less digits than its factorization.

2432791686661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20301613.

The product of its digits is 31352832, while the sum is 61.

The spelling of 2432791686661 in words is "two trillion, four hundred thirty-two billion, seven hundred ninety-one million, six hundred eighty-six thousand, six hundred sixty-one".