20047720526 has 16 divisors (see below), whose sum is σ = 31845864096. Its totient is φ = 9432631296.

The previous prime is 20047720523. The next prime is 20047720559. The reversal of 20047720526 is 62502774002.

It is a super-2 number, since 2×20047720526² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20047720523) 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, 168935 + ... + 261981.

It is an arithmetic number, because the mean of its divisors is an integer number (1990366506).

Almost surely, 2^20047720526 is an apocalyptic number.

20047720526 is a deficient number, since it is larger than the sum of its proper divisors (11798143570).

20047720526 is a wasteful number, since it uses less digits than its factorization.

20047720526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99403.

The product of its (nonzero) digits is 47040, while the sum is 35.

The spelling of 20047720526 in words is "twenty billion, forty-seven million, seven hundred twenty thousand, five hundred twenty-six".