14972021487 has 12 divisors (see below), whose sum is σ = 22371986520. Its totient is φ = 9637163088.

The previous prime is 14972021437. The next prime is 14972021563. The reversal of 14972021487 is 78412027941.

14972021487 is a `hidden beast` number, since 149 + 7 + 2 + 0 + 21 + 487 = 666.

It is not a de Polignac number, because 14972021487 - 2¹⁵ = 14971988719 is a prime.

It is a super-2 number, since 2×14972021487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14972021417) 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 in 11 ways as a sum of consecutive naturals, for example, 28681773 + ... + 28682294.

It is an arithmetic number, because the mean of its divisors is an integer number (1864332210).

Almost surely, 2^14972021487 is an apocalyptic number.

14972021487 is a deficient number, since it is larger than the sum of its proper divisors (7399965033).

14972021487 is a wasteful number, since it uses less digits than its factorization.

14972021487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57364102 (or 57364099 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 14972021487 in words is "fourteen billion, nine hundred seventy-two million, twenty-one thousand, four hundred eighty-seven".