20075090786 has 4 divisors (see below), whose sum is σ = 30112636182. Its totient is φ = 10037545392.

The previous prime is 20075090779. The next prime is 20075090837. The reversal of 20075090786 is 68709057002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17733982561 + 2341108225 = 133169^2 + 48385^2 .

It is a super-2 number, since 2×20075090786² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5018772695 + ... + 5018772698.

Almost surely, 2^20075090786 is an apocalyptic number.

20075090786 is a deficient number, since it is larger than the sum of its proper divisors (10037545396).

20075090786 is a wasteful number, since it uses less digits than its factorization.

20075090786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10037545395.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 20075090786 in words is "twenty billion, seventy-five million, ninety thousand, seven hundred eighty-six".