3992119961 has 8 divisors (see below), whose sum is σ = 4130676480. Its totient is φ = 3853623312.

The previous prime is 3992119927. The next prime is 3992119987. The reversal of 3992119961 is 1699112993.

It is a happy number.

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 3992119961 - 2⁶ = 3992119897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3992110961) 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, 152696 + ... + 176918.

It is an arithmetic number, because the mean of its divisors is an integer number (516334560).

Almost surely, 2^3992119961 is an apocalyptic number.

It is an amenable number.

3992119961 is a deficient number, since it is larger than the sum of its proper divisors (138556519).

3992119961 is a wasteful number, since it uses less digits than its factorization.

3992119961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29935.

The product of its digits is 236196, while the sum is 50.

The square root of 3992119961 is about 63183.2253133694. The cubic root of 3992119961 is about 1586.3579681898.

It can be divided in two parts, 39921 and 19961, that multiplied together give a triangular number (796863081 = T₃₉₉₂₁).

The spelling of 3992119961 in words is "three billion, nine hundred ninety-two million, one hundred nineteen thousand, nine hundred sixty-one".