20435275572 has 24 divisors (see below), whose sum is σ = 47723061792. Its totient is φ = 6805936800.

The previous prime is 20435275477. The next prime is 20435275579. The reversal of 20435275572 is 27557253402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435275579) 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, 713079 + ... + 741182.

It is an arithmetic number, because the mean of its divisors is an integer number (1988460908).

Almost surely, 2^20435275572 is an apocalyptic number.

It is an amenable number.

20435275572 is an abundant number, since it is smaller than the sum of its proper divisors (27287786220).

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

20435275572 is a wasteful number, since it uses less digits than its factorization.

20435275572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455439 (or 1455437 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 42.

The spelling of 20435275572 in words is "twenty billion, four hundred thirty-five million, two hundred seventy-five thousand, five hundred seventy-two".