13985502373 has 2 divisors, whose sum is σ = 13985502374. Its totient is φ = 13985502372.

The previous prime is 13985502263. The next prime is 13985502379. The reversal of 13985502373 is 37320558931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10186259329 + 3799243044 = 100927^2 + 61638^2 .

It is a cyclic number.

It is not a de Polignac number, because 13985502373 - 2⁹ = 13985501861 is a prime.

It is a super-2 number, since 2×13985502373² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13985502379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6992751186 + 6992751187.

It is an arithmetic number, because the mean of its divisors is an integer number (6992751187).

Almost surely, 2^13985502373 is an apocalyptic number.

It is an amenable number.

13985502373 is a deficient number, since it is larger than the sum of its proper divisors (1).

13985502373 is an equidigital number, since it uses as much as digits as its factorization.

13985502373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 13985502373 in words is "thirteen billion, nine hundred eighty-five million, five hundred two thousand, three hundred seventy-three".