2691102438 has 12 divisors (see below), whose sum is σ = 5830721988. Its totient is φ = 897034140.

The previous prime is 2691102433. The next prime is 2691102451. The reversal of 2691102438 is 8342011962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691102433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74752828 + ... + 74752863.

It is an arithmetic number, because the mean of its divisors is an integer number (485893499).

Almost surely, 2^2691102438 is an apocalyptic number.

2691102438 is an abundant number, since it is smaller than the sum of its proper divisors (3139619550).

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

2691102438 is a wasteful number, since it uses less digits than its factorization.

2691102438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149505699 (or 149505696 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2691102438 is about 51875.8367450589. The cubic root of 2691102438 is about 1390.9453807152.

The spelling of 2691102438 in words is "two billion, six hundred ninety-one million, one hundred two thousand, four hundred thirty-eight".