7942662851 has 2 divisors, whose sum is σ = 7942662852. Its totient is φ = 7942662850.

The previous prime is 7942662829. The next prime is 7942662863. The reversal of 7942662851 is 1582662497.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7942662851 - 2¹⁸ = 7942400707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7942662851.

It is not a weakly prime, because it can be changed into another prime (7942662881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971331425 + 3971331426.

It is an arithmetic number, because the mean of its divisors is an integer number (3971331426).

Almost surely, 2^7942662851 is an apocalyptic number.

7942662851 is a deficient number, since it is larger than the sum of its proper divisors (1).

7942662851 is an equidigital number, since it uses as much as digits as its factorization.

7942662851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 7942662851 is about 89121.6183145257. The cubic root of 7942662851 is about 1995.2104434801.

The spelling of 7942662851 in words is "seven billion, nine hundred forty-two million, six hundred sixty-two thousand, eight hundred fifty-one".