13972074469 has 2 divisors, whose sum is σ = 13972074470. Its totient is φ = 13972074468.

The previous prime is 13972074407. The next prime is 13972074481. The reversal of 13972074469 is 96447027931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13563630369 + 408444100 = 116463^2 + 20210^2 .

It is a cyclic number.

It is not a de Polignac number, because 13972074469 - 2²¹ = 13969977317 is a prime.

It is a super-2 number, since 2×13972074469² (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 (13972074499) 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, 6986037234 + 6986037235.

It is an arithmetic number, because the mean of its divisors is an integer number (6986037235).

Almost surely, 2^13972074469 is an apocalyptic number.

It is an amenable number.

13972074469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13972074469 is an equidigital number, since it uses as much as digits as its factorization.

13972074469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 13972074469 in words is "thirteen billion, nine hundred seventy-two million, seventy-four thousand, four hundred sixty-nine".