726385390454 has 32 divisors (see below), whose sum is σ = 1145748934656. Its totient is φ = 344715680320.

The previous prime is 726385390421. The next prime is 726385390469. The reversal of 726385390454 is 454093583627.

It is a super-2 number, since 2×726385390454² (a number of 25 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 726385390454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15170219 + ... + 15218025.

It is an arithmetic number, because the mean of its divisors is an integer number (35804654208).

Almost surely, 2^726385390454 is an apocalyptic number.

726385390454 is a deficient number, since it is larger than the sum of its proper divisors (419363544202).

726385390454 is a wasteful number, since it uses less digits than its factorization.

726385390454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50380.

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 726385390454 in words is "seven hundred twenty-six billion, three hundred eighty-five million, three hundred ninety thousand, four hundred fifty-four".