2851399651 has 4 divisors (see below), whose sum is σ = 2852302600. Its totient is φ = 2850496704.

The previous prime is 2851399643. The next prime is 2851399657. The reversal of 2851399651 is 1569931582.

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

It is a cyclic number.

It is not a de Polignac number, because 2851399651 - 2³ = 2851399643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2851399595 and 2851399604.

It is not an unprimeable number, because it can be changed into a prime (2851399657) 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, 446721 + ... + 453058.

It is an arithmetic number, because the mean of its divisors is an integer number (713075650).

Almost surely, 2^2851399651 is an apocalyptic number.

2851399651 is a deficient number, since it is larger than the sum of its proper divisors (902949).

2851399651 is an equidigital number, since it uses as much as digits as its factorization.

2851399651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902948.

The product of its digits is 583200, while the sum is 49.

The square root of 2851399651 is about 53398.4985837617. The cubic root of 2851399651 is about 1418.0319975366.

It can be divided in two parts, 28513 and 99651, that added together give a square (128164 = 358²).

The spelling of 2851399651 in words is "two billion, eight hundred fifty-one million, three hundred ninety-nine thousand, six hundred fifty-one".