20533009503769 has 48 divisors (see below), whose sum is σ = 25428453866496. Its totient is φ = 16474034572800.

The previous prime is 20533009503757. The next prime is 20533009503779. The reversal of 20533009503769 is 96730590033502.

It is not a de Polignac number, because 20533009503769 - 2⁷ = 20533009503641 is a prime.

It is a super-2 number, since 2×20533009503769² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20533009503709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 879987027 + ... + 880010359.

It is an arithmetic number, because the mean of its divisors is an integer number (529759455552).

Almost surely, 2^{20533009503769} is an apocalyptic number.

It is an amenable number.

20533009503769 is a deficient number, since it is larger than the sum of its proper divisors (4895444362727).

20533009503769 is a wasteful number, since it uses less digits than its factorization.

20533009503769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29086 (or 29079 counting only the distinct ones).

The product of its (nonzero) digits is 4592700, while the sum is 52.

The spelling of 20533009503769 in words is "twenty trillion, five hundred thirty-three billion, nine million, five hundred three thousand, seven hundred sixty-nine".