14807121989 has 6 divisors (see below), whose sum is σ = 16275597030. Its totient is φ = 13461019880.

The previous prime is 14807121961. The next prime is 14807121991. The reversal of 14807121989 is 98912170841.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11632701025 + 3174420964 = 107855^2 + 56342^2 .

It is not a de Polignac number, because 14807121989 - 2¹² = 14807117893 is a prime.

It is a super-2 number, since 2×14807121989² (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 (14807141989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61186334 + ... + 61186575.

It is an arithmetic number, because the mean of its divisors is an integer number (2712599505).

Almost surely, 2^14807121989 is an apocalyptic number.

It is an amenable number.

14807121989 is a deficient number, since it is larger than the sum of its proper divisors (1468475041).

14807121989 is a wasteful number, since it uses less digits than its factorization.

14807121989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122372931 (or 122372920 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 14807121989 in words is "fourteen billion, eight hundred seven million, one hundred twenty-one thousand, nine hundred eighty-nine".