2691936451 has 12 divisors (see below), whose sum is σ = 2861694360. Its totient is φ = 2531732480.

The previous prime is 2691936433. The next prime is 2691936479. The reversal of 2691936451 is 1546391962.

It is not a de Polignac number, because 2691936451 - 2¹⁷ = 2691805379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2691936551) 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, 543456 + ... + 548386.

It is an arithmetic number, because the mean of its divisors is an integer number (238474530).

Almost surely, 2^2691936451 is an apocalyptic number.

2691936451 is a deficient number, since it is larger than the sum of its proper divisors (169757909).

2691936451 is a wasteful number, since it uses less digits than its factorization.

2691936451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854 (or 6837 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 2691936451 is about 51883.8746721946. The cubic root of 2691936451 is about 1391.0890574842.

The spelling of 2691936451 in words is "two billion, six hundred ninety-one million, nine hundred thirty-six thousand, four hundred fifty-one".