20057268884 has 18 divisors (see below), whose sum is σ = 35587669950. Its totient is φ = 9891245376.

The previous prime is 20057268809. The next prime is 20057268893. The reversal of 20057268884 is 48886275002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11241936784 + 8815332100 = 106028^2 + 93890^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 449159 + ... + 491790.

It is an arithmetic number, because the mean of its divisors is an integer number (1977092775).

Almost surely, 2^20057268884 is an apocalyptic number.

It is an amenable number.

20057268884 is a deficient number, since it is larger than the sum of its proper divisors (15530401066).

20057268884 is an equidigital number, since it uses as much as digits as its factorization.

20057268884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941099 (or 941024 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 20057268884 in words is "twenty billion, fifty-seven million, two hundred sixty-eight thousand, eight hundred eighty-four".