20090578246 has 16 divisors (see below), whose sum is σ = 31514965344. Its totient is φ = 9587502144.

The previous prime is 20090578231. The next prime is 20090578247. The reversal of 20090578246 is 64287509002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20090578247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456825 + ... + 498868.

It is an arithmetic number, because the mean of its divisors is an integer number (1969685334).

Almost surely, 2^20090578246 is an apocalyptic number.

20090578246 is a deficient number, since it is larger than the sum of its proper divisors (11424387098).

20090578246 is a wasteful number, since it uses less digits than its factorization.

20090578246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956175.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20090578246 in words is "twenty billion, ninety million, five hundred seventy-eight thousand, two hundred forty-six".