20712345433 has 12 divisors (see below), whose sum is σ = 22553490960. Its totient is φ = 19012249776.

The previous prime is 20712345397. The next prime is 20712345439. The reversal of 20712345433 is 33454321702.

It is not a de Polignac number, because 20712345433 - 2²⁹ = 20175474521 is a prime.

It is a super-3 number, since 3×20712345433³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20712345439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312091 + ... + 372592.

It is an arithmetic number, because the mean of its divisors is an integer number (1879457580).

Almost surely, 2^20712345433 is an apocalyptic number.

It is an amenable number.

20712345433 is a deficient number, since it is larger than the sum of its proper divisors (1841145527).

20712345433 is a wasteful number, since it uses less digits than its factorization.

20712345433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684888 (or 684875 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

The spelling of 20712345433 in words is "twenty billion, seven hundred twelve million, three hundred forty-five thousand, four hundred thirty-three".