20770858539 has 16 divisors (see below), whose sum is σ = 32391203200. Its totient is φ = 13118436648.

The previous prime is 20770858499. The next prime is 20770858547. The reversal of 20770858539 is 93585807702.

20770858539 is a `hidden beast` number, since 20 + 7 + 7 + 0 + 8 + 585 + 39 = 666.

It is not a de Polignac number, because 20770858539 - 2¹⁹ = 20770334251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20770858579) 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, 20243989 + ... + 20245014.

It is an arithmetic number, because the mean of its divisors is an integer number (2024450200).

Almost surely, 2^20770858539 is an apocalyptic number.

20770858539 is a deficient number, since it is larger than the sum of its proper divisors (11620344661).

20770858539 is a wasteful number, since it uses less digits than its factorization.

20770858539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40489031 (or 40489025 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 20770858539 in words is "twenty billion, seven hundred seventy million, eight hundred fifty-eight thousand, five hundred thirty-nine".