3001991880402 has 24 divisors (see below), whose sum is σ = 6627038681484. Its totient is φ = 981783507744.

The previous prime is 3001991880379. The next prime is 3001991880403. The reversal of 3001991880402 is 2040881991003.

It can be written as a sum of positive squares in 2 ways, for example, as 2416156251201 + 585835629201 = 1554399^2 + 765399^2 .

It is not an unprimeable number, because it can be changed into a prime (3001991880403) 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, 1573370053 + ... + 1573371960.

Almost surely, 2^{3001991880402} is an apocalyptic number.

3001991880402 is an abundant number, since it is smaller than the sum of its proper divisors (3625046801082).

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

3001991880402 is a wasteful number, since it uses less digits than its factorization.

3001991880402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146742074 (or 3146742071 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 3001991880402 in words is "three trillion, one billion, nine hundred ninety-one million, eight hundred eighty thousand, four hundred two".