14387007857 has 2 divisors, whose sum is σ = 14387007858. Its totient is φ = 14387007856.

The previous prime is 14387007847. The next prime is 14387007881. The reversal of 14387007857 is 75870078341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12056918416 + 2330089441 = 109804^2 + 48271^2 .

It is a cyclic number.

It is not a de Polignac number, because 14387007857 - 2⁸ = 14387007601 is a prime.

It is not a weakly prime, because it can be changed into another prime (14387007847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7193503928 + 7193503929.

It is an arithmetic number, because the mean of its divisors is an integer number (7193503929).

Almost surely, 2^14387007857 is an apocalyptic number.

It is an amenable number.

14387007857 is a deficient number, since it is larger than the sum of its proper divisors (1).

14387007857 is an equidigital number, since it uses as much as digits as its factorization.

14387007857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1317120, while the sum is 50.

The spelling of 14387007857 in words is "fourteen billion, three hundred eighty-seven million, seven thousand, eight hundred fifty-seven".