3950419961 has 4 divisors (see below), whose sum is σ = 3950947152. Its totient is φ = 3949892772.

The previous prime is 3950419939. The next prime is 3950419973. The reversal of 3950419961 is 1699140593.

It is a happy number.

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 3950419961 - 2²⁶ = 3883311097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3950419261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252191 + ... + 267396.

It is an arithmetic number, because the mean of its divisors is an integer number (987736788).

Almost surely, 2^3950419961 is an apocalyptic number.

It is an amenable number.

3950419961 is a deficient number, since it is larger than the sum of its proper divisors (527191).

3950419961 is an equidigital number, since it uses as much as digits as its factorization.

3950419961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527190.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 3950419961 is about 62852.3663914096. The cubic root of 3950419961 is about 1580.8151485985.

The spelling of 3950419961 in words is "three billion, nine hundred fifty million, four hundred nineteen thousand, nine hundred sixty-one".