20858622752 has 90 divisors (see below), whose sum is σ = 45386772795. Its totient is φ = 9436257600.

The previous prime is 20858622691. The next prime is 20858622767. The reversal of 20858622752 is 25722685802.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 10429311376 + 10429311376 = 102124^2 + 102124^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=102124.

It is a super-2 number, since 2×20858622752² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20858622697 and 20858622706.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 98855927 + ... + 98856137.

Almost surely, 2^20858622752 is an apocalyptic number.

20858622752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20858622752

20858622752 is an abundant number, since it is smaller than the sum of its proper divisors (24528150043).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20858622752 is an frugal number, since it uses more digits than its factorization.

20858622752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 20858622752 in words is "twenty billion, eight hundred fifty-eight million, six hundred twenty-two thousand, seven hundred fifty-two".