723139542648 has 32 divisors (see below), whose sum is σ = 2008720952400. Its totient is φ = 241046514144.

The previous prime is 723139542637. The next prime is 723139542659. The reversal of 723139542648 is 846245931327.

723139542648 is a `hidden beast` number, since 7 + 2 + 3 + 1 + 39 + 542 + 64 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (723139542637) and next prime (723139542659).

It is a super-2 number, since 2×723139542648² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 723139542594 and 723139542603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673933911 + ... + 1673934342.

Almost surely, 2^723139542648 is an apocalyptic number.

It is an amenable number.

723139542648 is an abundant number, since it is smaller than the sum of its proper divisors (1285581409752).

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

723139542648 is a wasteful number, since it uses less digits than its factorization.

723139542648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347868268 (or 3347868258 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 723139542648 in words is "seven hundred twenty-three billion, one hundred thirty-nine million, five hundred forty-two thousand, six hundred forty-eight".