39660629189 has 16 divisors (see below), whose sum is σ = 41480678400. Its totient is φ = 37882416960.

The previous prime is 39660629171. The next prime is 39660629249. The reversal of 39660629189 is 98192606693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39660629189 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 (39660626189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1163612 + ... + 1197210.

It is an arithmetic number, because the mean of its divisors is an integer number (2592542400).

Almost surely, 2^39660629189 is an apocalyptic number.

It is an amenable number.

39660629189 is a deficient number, since it is larger than the sum of its proper divisors (1820049211).

39660629189 is a wasteful number, since it uses less digits than its factorization.

39660629189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34220.

The product of its (nonzero) digits is 7558272, while the sum is 59.

The spelling of 39660629189 in words is "thirty-nine billion, six hundred sixty million, six hundred twenty-nine thousand, one hundred eighty-nine".