3989653130437 has 18 divisors (see below), whose sum is σ = 4589232514998. Its totient is φ = 3466123944192.

The previous prime is 3989653130429. The next prime is 3989653130447. The reversal of 3989653130437 is 7340313569893.

It can be written as a sum of positive squares in 9 ways, for example, as 169481245761 + 3820171884676 = 411681^2 + 1954526^2 .

It is not a de Polignac number, because 3989653130437 - 2³ = 3989653130429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989653130447) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 40794438 + ... + 40892119.

Almost surely, 2^{3989653130437} is an apocalyptic number.

It is an amenable number.

3989653130437 is a deficient number, since it is larger than the sum of its proper divisors (599579384561).

3989653130437 is a wasteful number, since it uses less digits than its factorization.

3989653130437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81686617 (or 81686587 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 61.

The spelling of 3989653130437 in words is "three trillion, nine hundred eighty-nine billion, six hundred fifty-three million, one hundred thirty thousand, four hundred thirty-seven".