20247676287 has 16 divisors (see below), whose sum is σ = 28598808960. Its totient is φ = 12706548192.

The previous prime is 20247676279. The next prime is 20247676291. The reversal of 20247676287 is 78267674202.

It is not a de Polignac number, because 20247676287 - 2³ = 20247676279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247676217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122333 + ... + 1140230.

It is an arithmetic number, because the mean of its divisors is an integer number (1787425560).

Almost surely, 2^20247676287 is an apocalyptic number.

20247676287 is a deficient number, since it is larger than the sum of its proper divisors (8351132673).

20247676287 is a wasteful number, since it uses less digits than its factorization.

20247676287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262742.

The product of its (nonzero) digits is 3161088, while the sum is 51.

The spelling of 20247676287 in words is "twenty billion, two hundred forty-seven million, six hundred seventy-six thousand, two hundred eighty-seven".