20057744307 has 16 divisors (see below), whose sum is σ = 28178928000. Its totient is φ = 12655580544.

The previous prime is 20057744261. The next prime is 20057744309. The reversal of 20057744307 is 70344775002.

It is not a de Polignac number, because 20057744307 - 2¹² = 20057740211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20057744309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114582 + ... + 230747.

It is an arithmetic number, because the mean of its divisors is an integer number (1761183000).

Almost surely, 2^20057744307 is an apocalyptic number.

20057744307 is a deficient number, since it is larger than the sum of its proper divisors (8121183693).

20057744307 is a wasteful number, since it uses less digits than its factorization.

20057744307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346370.

The product of its (nonzero) digits is 164640, while the sum is 39.

The spelling of 20057744307 in words is "twenty billion, fifty-seven million, seven hundred forty-four thousand, three hundred seven".