20747685374 has 16 divisors (see below), whose sum is σ = 33535667088. Its totient is φ = 9570090432.

The previous prime is 20747685323. The next prime is 20747685389. The reversal of 20747685374 is 47358674702.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 196007 + ... + 282690.

It is an arithmetic number, because the mean of its divisors is an integer number (2095979193).

Almost surely, 2^20747685374 is an apocalyptic number.

20747685374 is a deficient number, since it is larger than the sum of its proper divisors (12787981714).

20747685374 is a wasteful number, since it uses less digits than its factorization.

20747685374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480379.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 20747685374 in words is "twenty billion, seven hundred forty-seven million, six hundred eighty-five thousand, three hundred seventy-four".