39930450287 has 32 divisors (see below), whose sum is σ = 50014809600. Its totient is φ = 31035063168.

The previous prime is 39930450281. The next prime is 39930450311. The reversal of 39930450287 is 78205403993.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 39930450287 - 2³⁰ = 38856708463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39930450281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14274773 + ... + 14277569.

It is an arithmetic number, because the mean of its divisors is an integer number (1562962800).

Almost surely, 2^39930450287 is an apocalyptic number.

39930450287 is a deficient number, since it is larger than the sum of its proper divisors (10084359313).

39930450287 is a wasteful number, since it uses less digits than its factorization.

39930450287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 39930450287 in words is "thirty-nine billion, nine hundred thirty million, four hundred fifty thousand, two hundred eighty-seven".