726653226040 has 32 divisors (see below), whose sum is σ = 1868536867680. Its totient is φ = 249138248832.

The previous prime is 726653225993. The next prime is 726653226041. The reversal of 726653226040 is 40622356627.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726653226041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1297594767 + ... + 1297595326.

It is an arithmetic number, because the mean of its divisors is an integer number (58391777115).

Almost surely, 2^726653226040 is an apocalyptic number.

726653226040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

726653226040 is an abundant number, since it is smaller than the sum of its proper divisors (1141883641640).

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

726653226040 is a wasteful number, since it uses less digits than its factorization.

726653226040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595190111 (or 2595190107 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 726653226040 in words is "seven hundred twenty-six billion, six hundred fifty-three million, two hundred twenty-six thousand, forty".