20674293846 has 16 divisors (see below), whose sum is σ = 41365377984. Its totient is φ = 6888632904.

The previous prime is 20674293839. The next prime is 20674293877. The reversal of 20674293846 is 64839247602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683560 + ... + 713163.

It is an arithmetic number, because the mean of its divisors is an integer number (2585336124).

Almost surely, 2^20674293846 is an apocalyptic number.

20674293846 is an abundant number, since it is smaller than the sum of its proper divisors (20691084138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20674293846 is a wasteful number, since it uses less digits than its factorization.

20674293846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399195.

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 20674293846 in words is "twenty billion, six hundred seventy-four million, two hundred ninety-three thousand, eight hundred forty-six".