20247032976439 has 8 divisors (see below), whose sum is σ = 20279970821232. Its totient is φ = 20214111752640.

The previous prime is 20247032976437. The next prime is 20247032976461. The reversal of 20247032976439 is 93467923074202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20247032976439 - 2¹ = 20247032976437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247032976437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1715784 + ... + 6590749.

It is an arithmetic number, because the mean of its divisors is an integer number (2534996352654).

Almost surely, 2^{20247032976439} is an apocalyptic number.

20247032976439 is a deficient number, since it is larger than the sum of its proper divisors (32937844793).

20247032976439 is an equidigital number, since it uses as much as digits as its factorization.

20247032976439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8310497.

The product of its (nonzero) digits is 27433728, while the sum is 58.

The spelling of 20247032976439 in words is "twenty trillion, two hundred forty-seven billion, thirty-two million, nine hundred seventy-six thousand, four hundred thirty-nine".