15872857522939 has 2 divisors, whose sum is σ = 15872857522940. Its totient is φ = 15872857522938.

The previous prime is 15872857522861. The next prime is 15872857522969. The reversal of 15872857522939 is 93922575827851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15872857522939 - 2⁷ = 15872857522811 is a prime.

It is a super-2 number, since 2×15872857522939² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15872857522969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7936428761469 + 7936428761470.

It is an arithmetic number, because the mean of its divisors is an integer number (7936428761470).

Almost surely, 2^{15872857522939} is an apocalyptic number.

15872857522939 is a deficient number, since it is larger than the sum of its proper divisors (1).

15872857522939 is an equidigital number, since it uses as much as digits as its factorization.

15872857522939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048000, while the sum is 73.

The spelling of 15872857522939 in words is "fifteen trillion, eight hundred seventy-two billion, eight hundred fifty-seven million, five hundred twenty-two thousand, nine hundred thirty-nine".