39987680294 has 4 divisors (see below), whose sum is σ = 59981520444. Its totient is φ = 19993840146.

The previous prime is 39987680219. The next prime is 39987680303. The reversal of 39987680294 is 49208678993.

39987680294 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49208678993 = 97 ⋅507305969.

It is a self number, because there is not a number n which added to its sum of digits gives 39987680294.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9996920072 + ... + 9996920075.

It is an arithmetic number, because the mean of its divisors is an integer number (14995380111).

Almost surely, 2^39987680294 is an apocalyptic number.

39987680294 is a deficient number, since it is larger than the sum of its proper divisors (19993840150).

39987680294 is a wasteful number, since it uses less digits than its factorization.

39987680294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19993840149.

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 39987680294 in words is "thirty-nine billion, nine hundred eighty-seven million, six hundred eighty thousand, two hundred ninety-four".