2699071379 has 4 divisors (see below), whose sum is σ = 2725794960. Its totient is φ = 2672347800.

The previous prime is 2699071339. The next prime is 2699071381. The reversal of 2699071379 is 9731709962.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2699071379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2699071379.

It is not an unprimeable number, because it can be changed into a prime (2699071339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13361639 + ... + 13361840.

It is an arithmetic number, because the mean of its divisors is an integer number (681448740).

Almost surely, 2^2699071379 is an apocalyptic number.

2699071379 is a deficient number, since it is larger than the sum of its proper divisors (26723581).

2699071379 is a wasteful number, since it uses less digits than its factorization.

2699071379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26723580.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 2699071379 is about 51952.5877988768. The cubic root of 2699071379 is about 1392.3169918946.

The spelling of 2699071379 in words is "two billion, six hundred ninety-nine million, seventy-one thousand, three hundred seventy-nine".