3670831881 has 12 divisors (see below), whose sum is σ = 5304319540. Its totient is φ = 2446295040.

The previous prime is 3670831817. The next prime is 3670831891. The reversal of 3670831881 is 1881380763.

3670831881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1571726025 + 2099105856 = 39645^2 + 45816^2 .

It is not a de Polignac number, because 3670831881 - 2⁶ = 3670831817 is a prime.

It is a super-2 number, since 2×3670831881² = 26950013397131996322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3670831891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51640 + ... + 100041.

Almost surely, 2^3670831881 is an apocalyptic number.

It is an amenable number.

3670831881 is a deficient number, since it is larger than the sum of its proper divisors (1633487659).

3670831881 is a wasteful number, since it uses less digits than its factorization.

3670831881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154376 (or 154373 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 3670831881 is about 60587.3904455374. The cubic root of 3670831881 is about 1542.6053442953.

The spelling of 3670831881 in words is "three billion, six hundred seventy million, eight hundred thirty-one thousand, eight hundred eighty-one".