3691229865738 has 32 divisors (see below), whose sum is σ = 7542950805504. Its totient is φ = 1203685175472.

The previous prime is 3691229865679. The next prime is 3691229865751. The reversal of 3691229865738 is 8375689221963.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2343070 + ... + 3587817.

It is an arithmetic number, because the mean of its divisors is an integer number (235717212672).

Almost surely, 2^{3691229865738} is an apocalyptic number.

3691229865738 is an abundant number, since it is smaller than the sum of its proper divisors (3851720939766).

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

3691229865738 is a wasteful number, since it uses less digits than its factorization.

3691229865738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933146.

The product of its digits is 235146240, while the sum is 69.

The spelling of 3691229865738 in words is "three trillion, six hundred ninety-one billion, two hundred twenty-nine million, eight hundred sixty-five thousand, seven hundred thirty-eight".