39125590687 has 2 divisors, whose sum is σ = 39125590688. Its totient is φ = 39125590686.

The previous prime is 39125590633. The next prime is 39125590709. The reversal of 39125590687 is 78609552193.

It is a strong prime.

It is an emirp because it is prime and its reverse (78609552193) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39125590687 is a prime.

It is a super-2 number, since 2×39125590687² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39125594687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19562795343 + 19562795344.

It is an arithmetic number, because the mean of its divisors is an integer number (19562795344).

Almost surely, 2^39125590687 is an apocalyptic number.

39125590687 is a deficient number, since it is larger than the sum of its proper divisors (1).

39125590687 is an equidigital number, since it uses as much as digits as its factorization.

39125590687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 39125590687 in words is "thirty-nine billion, one hundred twenty-five million, five hundred ninety thousand, six hundred eighty-seven".