72263919624568 has 32 divisors (see below), whose sum is σ = 154852935112800. Its totient is φ = 30969915512832.

The previous prime is 72263919624503. The next prime is 72263919624569. The reversal of 72263919624568 is 86542691936227.

It is a happy number.

It is a super-2 number, since 2×72263919624568² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72263919624497 and 72263919624506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72263919624569) 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, 1748473 + ... + 12148456.

It is an arithmetic number, because the mean of its divisors is an integer number (4839154222275).

Almost surely, 2^{72263919624568} is an apocalyptic number.

It is an amenable number.

72263919624568 is an abundant number, since it is smaller than the sum of its proper divisors (82589015488232).

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

72263919624568 is a wasteful number, since it uses less digits than its factorization.

72263919624568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13989799 (or 13989795 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 70.

The spelling of 72263919624568 in words is "seventy-two trillion, two hundred sixty-three billion, nine hundred nineteen million, six hundred twenty-four thousand, five hundred sixty-eight".