6994624999 has 2 divisors, whose sum is σ = 6994625000. Its totient is φ = 6994624998.

The previous prime is 6994624991. The next prime is 6994625069. The reversal of 6994624999 is 9994264996.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6994624999 - 2³ = 6994624991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6994624991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497312499 + 3497312500.

It is an arithmetic number, because the mean of its divisors is an integer number (3497312500).

Almost surely, 2^6994624999 is an apocalyptic number.

6994624999 is a deficient number, since it is larger than the sum of its proper divisors (1).

6994624999 is an equidigital number, since it uses as much as digits as its factorization.

6994624999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68024448, while the sum is 67.

The square root of 6994624999 is about 83633.8747099523. The cubic root of 6994624999 is about 1912.4414380177.

The spelling of 6994624999 in words is "six billion, nine hundred ninety-four million, six hundred twenty-four thousand, nine hundred ninety-nine".