3919977156 has 48 divisors (see below), whose sum is σ = 9561251840. Its totient is φ = 1248492960.

The previous prime is 3919977151. The next prime is 3919977157. The reversal of 3919977156 is 6517799193.

It is a junction number, because it is equal to n+sod(n) for n = 3919977096 and 3919977105.

It is not an unprimeable number, because it can be changed into a prime (3919977151) 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, 37306 + ... + 96081.

Almost surely, 2^3919977156 is an apocalyptic number.

It is an amenable number.

3919977156 is an abundant number, since it is smaller than the sum of its proper divisors (5641274684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3919977156 is a wasteful number, since it uses less digits than its factorization.

3919977156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133504 (or 133502 counting only the distinct ones).

The product of its digits is 3214890, while the sum is 57.

The square root of 3919977156 is about 62609.7209385252. The cubic root of 3919977156 is about 1576.7439697572.

The spelling of 3919977156 in words is "three billion, nine hundred nineteen million, nine hundred seventy-seven thousand, one hundred fifty-six".