39980686390 has 16 divisors (see below), whose sum is σ = 72013789008. Its totient is φ = 15981484896.

The previous prime is 39980686387. The next prime is 39980686393. The reversal of 39980686390 is 9368608993.

It is an interprime number because it is at equal distance from previous prime (39980686387) and next prime (39980686393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39980686393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333137 + ... + 1362796.

It is an arithmetic number, because the mean of its divisors is an integer number (4500861813).

Almost surely, 2^39980686390 is an apocalyptic number.

39980686390 is a deficient number, since it is larger than the sum of its proper divisors (32033102618).

39980686390 is a wasteful number, since it uses less digits than its factorization.

39980686390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697423.

The product of its (nonzero) digits is 15116544, while the sum is 61.

The spelling of 39980686390 in words is "thirty-nine billion, nine hundred eighty million, six hundred eighty-six thousand, three hundred ninety".