426685727572 has 24 divisors (see below), whose sum is σ = 805076888616. Its totient is φ = 196702061568.

The previous prime is 426685727569. The next prime is 426685727593. The reversal of 426685727572 is 275727586624.

It can be written as a sum of positive squares in 4 ways, for example, as 54248931396 + 372436796176 = 232914^2 + 610276^2 .

It is a super-2 number, since 2×426685727572² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426685727572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4742773 + ... + 4831900.

It is an arithmetic number, because the mean of its divisors is an integer number (33544870359).

Almost surely, 2^426685727572 is an apocalyptic number.

It is an amenable number.

426685727572 is a deficient number, since it is larger than the sum of its proper divisors (378391161044).

426685727572 is a wasteful number, since it uses less digits than its factorization.

426685727572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575547 (or 9575545 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 61.

The spelling of 426685727572 in words is "four hundred twenty-six billion, six hundred eighty-five million, seven hundred twenty-seven thousand, five hundred seventy-two".