2699071381 has 2 divisors, whose sum is σ = 2699071382. Its totient is φ = 2699071380.

The previous prime is 2699071339. The next prime is 2699071393. The reversal of 2699071381 is 1831709962.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2673407025 + 25664356 = 51705^2 + 5066^2 .

It is a cyclic number.

It is not a de Polignac number, because 2699071381 - 2⁷ = 2699071253 is a prime.

It is a super-2 number, since 2×2699071381² = 14569972639466494322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2699078381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1349535690 + 1349535691.

It is an arithmetic number, because the mean of its divisors is an integer number (1349535691).

Almost surely, 2^2699071381 is an apocalyptic number.

It is an amenable number.

2699071381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2699071381 is an equidigital number, since it uses as much as digits as its factorization.

2699071381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 2699071381 is about 51952.5878181251. The cubic root of 2699071381 is about 1392.3169922385.

The spelling of 2699071381 in words is "two billion, six hundred ninety-nine million, seventy-one thousand, three hundred eighty-one".