20293758813 has 8 divisors (see below), whose sum is σ = 27059003776. Its totient is φ = 13528843200.

The previous prime is 20293758809. The next prime is 20293758847. The reversal of 20293758813 is 31885739202.

It is a happy number.

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

It is not a de Polignac number, because 20293758813 - 2² = 20293758809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20293753813) 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, 192453 + ... + 278613.

It is an arithmetic number, because the mean of its divisors is an integer number (3382375472).

Almost surely, 2^20293758813 is an apocalyptic number.

It is an amenable number.

20293758813 is a deficient number, since it is larger than the sum of its proper divisors (6765244963).

20293758813 is an equidigital number, since it uses as much as digits as its factorization.

20293758813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164675.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 20293758813 in words is "twenty billion, two hundred ninety-three million, seven hundred fifty-eight thousand, eight hundred thirteen".