2691484657 has 16 divisors (see below), whose sum is σ = 2786015232. Its totient is φ = 2598711120.

The previous prime is 2691484651. The next prime is 2691484687. The reversal of 2691484657 is 7564841962.

2691484657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2691484657 - 2⁷ = 2691484529 is a prime.

It is a Duffinian number.

Its product of digits (2903040) is a multiple of the sum of its prime divisors (2268).

It is not an unprimeable number, because it can be changed into a prime (2691484651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485282 + ... + 1487092.

It is an arithmetic number, because the mean of its divisors is an integer number (174125952).

Almost surely, 2^2691484657 is an apocalyptic number.

It is an amenable number.

2691484657 is a deficient number, since it is larger than the sum of its proper divisors (94530575).

2691484657 is a wasteful number, since it uses less digits than its factorization.

2691484657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268.

The product of its digits is 2903040, while the sum is 52.

The square root of 2691484657 is about 51879.5205933902. The cubic root of 2691484657 is about 1391.0112298851.

The spelling of 2691484657 in words is "two billion, six hundred ninety-one million, four hundred eighty-four thousand, six hundred fifty-seven".