4192090861 has 16 divisors (see below), whose sum is σ = 5001128320. Its totient is φ = 3438780480.

The previous prime is 4192090849. The next prime is 4192090921. The reversal of 4192090861 is 1680902914.

It is a cyclic number.

It is not a de Polignac number, because 4192090861 - 2⁹ = 4192090349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4198090861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116871 + ... + 148468.

It is an arithmetic number, because the mean of its divisors is an integer number (312570520).

Almost surely, 2^4192090861 is an apocalyptic number.

It is an amenable number.

4192090861 is a deficient number, since it is larger than the sum of its proper divisors (809037459).

4192090861 is a wasteful number, since it uses less digits than its factorization.

4192090861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265444.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 4192090861 is about 64746.3578975683. The cubic root of 4192090861 is about 1612.4152452378.

The spelling of 4192090861 in words is "four billion, one hundred ninety-two million, ninety thousand, eight hundred sixty-one".