20292921286 has 16 divisors (see below), whose sum is σ = 33978846528. Its totient is φ = 9009541800.

The previous prime is 20292921269. The next prime is 20292921349. The reversal of 20292921286 is 68212929202.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 10724700 + ... + 10726591.

It is an arithmetic number, because the mean of its divisors is an integer number (2123677908).

Almost surely, 2^20292921286 is an apocalyptic number.

20292921286 is a deficient number, since it is larger than the sum of its proper divisors (13685925242).

20292921286 is a wasteful number, since it uses less digits than its factorization.

20292921286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21451347.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 20292921286 in words is "twenty billion, two hundred ninety-two million, nine hundred twenty-one thousand, two hundred eighty-six".