723434034662540 has 192 divisors, whose sum is σ = 1645783482470400. Its totient is φ = 266293727056896.

The previous prime is 723434034662539. The next prime is 723434034662567. The reversal of 723434034662540 is 45266430434327.

723434034662540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×723434034662540² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36987261281 + ... + 36987280839.

It is an arithmetic number, because the mean of its divisors is an integer number (8571788971200).

Almost surely, 2^{723434034662540} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 723434034662540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822891741235200).

723434034662540 is an abundant number, since it is smaller than the sum of its proper divisors (922349447807860).

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

723434034662540 is a wasteful number, since it uses less digits than its factorization.

723434034662540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29376 (or 29374 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 53.

The spelling of 723434034662540 in words is "seven hundred twenty-three trillion, four hundred thirty-four billion, thirty-four million, six hundred sixty-two thousand, five hundred forty".