39880676987 has 2 divisors, whose sum is σ = 39880676988. Its totient is φ = 39880676986.

The previous prime is 39880676933. The next prime is 39880677013. The reversal of 39880676987 is 78967608893.

39880676987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39880676987 - 2¹² = 39880672891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39880676987.

It is not a weakly prime, because it can be changed into another prime (39880676287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19940338493 + 19940338494.

It is an arithmetic number, because the mean of its divisors is an integer number (19940338494).

Almost surely, 2^39880676987 is an apocalyptic number.

39880676987 is a deficient number, since it is larger than the sum of its proper divisors (1).

39880676987 is an equidigital number, since it uses as much as digits as its factorization.

39880676987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219469824, while the sum is 71.

The spelling of 39880676987 in words is "thirty-nine billion, eight hundred eighty million, six hundred seventy-six thousand, nine hundred eighty-seven".