4077131994 has 24 divisors (see below), whose sum is σ = 9513308532. Its totient is φ = 1254502080.

The previous prime is 4077131987. The next prime is 4077131999. The reversal of 4077131994 is 4991317704.

It can be written as a sum of positive squares in 2 ways, for example, as 3135440025 + 941691969 = 55995^2 + 30687^2 .

It is not an unprimeable number, because it can be changed into a prime (4077131999) 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, 8711587 + ... + 8712054.

Almost surely, 2^4077131994 is an apocalyptic number.

4077131994 is an abundant number, since it is smaller than the sum of its proper divisors (5436176538).

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

4077131994 is a wasteful number, since it uses less digits than its factorization.

4077131994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17423662 (or 17423659 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 4077131994 is about 63852.4235561971. The cubic root of 4077131994 is about 1597.5394463725.

The spelling of 4077131994 in words is "four billion, seventy-seven million, one hundred thirty-one thousand, nine hundred ninety-four".