192420507691 has 8 divisors (see below), whose sum is σ = 194864246720. Its totient is φ = 189976969728.

The previous prime is 192420507689. The next prime is 192420507803. The reversal of 192420507691 is 196705024291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 192420507691 - 2¹ = 192420507689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192420517691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3201085 + ... + 3260641.

It is an arithmetic number, because the mean of its divisors is an integer number (24358030840).

Almost surely, 2^192420507691 is an apocalyptic number.

192420507691 is a deficient number, since it is larger than the sum of its proper divisors (2443739029).

192420507691 is an equidigital number, since it uses as much as digits as its factorization.

192420507691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100533.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 192420507691 in words is "one hundred ninety-two billion, four hundred twenty million, five hundred seven thousand, six hundred ninety-one".