20310674747 has 4 divisors (see below), whose sum is σ = 22157099736. Its totient is φ = 18464249760.

The previous prime is 20310674729. The next prime is 20310674753. The reversal of 20310674747 is 74747601302.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20310674747 - 2¹⁶ = 20310609211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310674647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923212478 + ... + 923212499.

It is an arithmetic number, because the mean of its divisors is an integer number (5539274934).

Almost surely, 2^20310674747 is an apocalyptic number.

20310674747 is a deficient number, since it is larger than the sum of its proper divisors (1846424989).

20310674747 is a wasteful number, since it uses less digits than its factorization.

20310674747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846424988.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 20310674747 in words is "twenty billion, three hundred ten million, six hundred seventy-four thousand, seven hundred forty-seven".