20678023090 has 8 divisors (see below), whose sum is σ = 37220441580. Its totient is φ = 8271209232.

The previous prime is 20678023081. The next prime is 20678023123. The reversal of 20678023090 is 9032087602.

It can be written as a sum of positive squares in 2 ways, for example, as 16660871929 + 4017151161 = 129077^2 + 63381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033901145 + ... + 1033901164.

Almost surely, 2^20678023090 is an apocalyptic number.

20678023090 is a deficient number, since it is larger than the sum of its proper divisors (16542418490).

20678023090 is a wasteful number, since it uses less digits than its factorization.

20678023090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067802316.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 20678023090 in words is "twenty billion, six hundred seventy-eight million, twenty-three thousand, ninety".