14971687057447 has 2 divisors, whose sum is σ = 14971687057448. Its totient is φ = 14971687057446.

The previous prime is 14971687057361. The next prime is 14971687057469. The reversal of 14971687057447 is 74475078617941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14971687057447 - 2³¹ = 14969539573799 is a prime.

It is a super-2 number, since 2×14971687057447² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14971687052447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7485843528723 + 7485843528724.

It is an arithmetic number, because the mean of its divisors is an integer number (7485843528724).

Almost surely, 2^{14971687057447} is an apocalyptic number.

14971687057447 is a deficient number, since it is larger than the sum of its proper divisors (1).

14971687057447 is an equidigital number, since it uses as much as digits as its factorization.

14971687057447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331914240, while the sum is 70.

The spelling of 14971687057447 in words is "fourteen trillion, nine hundred seventy-one billion, six hundred eighty-seven million, fifty-seven thousand, four hundred forty-seven".