2690706091 has 2 divisors, whose sum is σ = 2690706092. Its totient is φ = 2690706090.

The previous prime is 2690706079. The next prime is 2690706107. The reversal of 2690706091 is 1906070962.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2690706091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2690706041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345353045 + 1345353046.

It is an arithmetic number, because the mean of its divisors is an integer number (1345353046).

Almost surely, 2^2690706091 is an apocalyptic number.

2690706091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690706091 is an equidigital number, since it uses as much as digits as its factorization.

2690706091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 2690706091 is about 51872.0164539610. The cubic root of 2690706091 is about 1390.8770909704.

The spelling of 2690706091 in words is "two billion, six hundred ninety million, seven hundred six thousand, ninety-one".