712382782440 has 64 divisors (see below), whose sum is σ = 2442455256960. Its totient is φ = 162830350080.

The previous prime is 712382782411. The next prime is 712382782451. The reversal of 712382782440 is 44287283217.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 712382782440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424036531 + ... + 424038210.

It is an arithmetic number, because the mean of its divisors is an integer number (38163363390).

Almost surely, 2^712382782440 is an apocalyptic number.

712382782440 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

712382782440 is an abundant number, since it is smaller than the sum of its proper divisors (1730072474520).

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

712382782440 is a wasteful number, since it uses less digits than its factorization.

712382782440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848074762 (or 848074758 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 48.

The spelling of 712382782440 in words is "seven hundred twelve billion, three hundred eighty-two million, seven hundred eighty-two thousand, four hundred forty".