726283879040 has 64 divisors (see below), whose sum is σ = 1838406096360. Its totient is φ = 273424515072.

The previous prime is 726283879007. The next prime is 726283879049. The reversal of 726283879040 is 40978382627.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 717924068416 + 8359810624 = 847304^2 + 91432^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (726283879049) 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, 33366137 + ... + 33387896.

Almost surely, 2^726283879040 is an apocalyptic number.

It is an amenable number.

726283879040 is an abundant number, since it is smaller than the sum of its proper divisors (1112122217320).

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

726283879040 is a wasteful number, since it uses less digits than its factorization.

726283879040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66754069 (or 66754057 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 726283879040 in words is "seven hundred twenty-six billion, two hundred eighty-three million, eight hundred seventy-nine thousand, forty".