53423432436 has 96 divisors (see below), whose sum is σ = 141967300608. Its totient is φ = 15477644160.

The previous prime is 53423432407. The next prime is 53423432441. The reversal of 53423432436 is 63423432435.

It is a junction number, because it is equal to n+sod(n) for n = 53423432394 and 53423432403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11695425 + ... + 11699991.

It is an arithmetic number, because the mean of its divisors is an integer number (1478826048).

Almost surely, 2^53423432436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53423432436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70983650304).

53423432436 is an abundant number, since it is smaller than the sum of its proper divisors (88543868172).

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

53423432436 is a wasteful number, since it uses less digits than its factorization.

53423432436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461 (or 8459 counting only the distinct ones).

The product of its digits is 622080, while the sum is 39.

Subtracting 53423432436 from its reverse (63423432435), we obtain a palindrome (9999999999).

The spelling of 53423432436 in words is "fifty-three billion, four hundred twenty-three million, four hundred thirty-two thousand, four hundred thirty-six".