723071420606040 has 128 divisors (see below), whose sum is σ = 2381488269592320. Its totient is φ = 174173544230400.

The previous prime is 723071420605973. The next prime is 723071420606053. The reversal of 723071420606040 is 40606024170327.

It is a junction number, because it is equal to n+sod(n) for n = 723071420605983 and 723071420606001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1744319446 + ... + 1744733925.

It is an arithmetic number, because the mean of its divisors is an integer number (18605377106190).

Almost surely, 2^{723071420606040} is an apocalyptic number.

It is an amenable number.

723071420606040 is an abundant number, since it is smaller than the sum of its proper divisors (1658416848986280).

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

723071420606040 is a wasteful number, since it uses less digits than its factorization.

723071420606040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489053553 (or 3489053549 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

Adding to 723071420606040 its reverse (40606024170327), we get a palindrome (763677444776367).

The spelling of 723071420606040 in words is "seven hundred twenty-three trillion, seventy-one billion, four hundred twenty million, six hundred six thousand, forty".