20893686094 has 16 divisors (see below), whose sum is σ = 32794692480. Its totient is φ = 9971354880.

The previous prime is 20893686043. The next prime is 20893686133. The reversal of 20893686094 is 49068639802.

It is a happy number.

It is a super-2 number, since 2×20893686094² (a number of 21 digits) contains 22 as substring.

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, 2303659 + ... + 2312710.

It is an arithmetic number, because the mean of its divisors is an integer number (2049668280).

Almost surely, 2^20893686094 is an apocalyptic number.

20893686094 is a deficient number, since it is larger than the sum of its proper divisors (11901006386).

20893686094 is a wasteful number, since it uses less digits than its factorization.

20893686094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616475.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 20893686094 in words is "twenty billion, eight hundred ninety-three million, six hundred eighty-six thousand, ninety-four".