725217190340 has 12 divisors (see below), whose sum is σ = 1522956099756. Its totient is φ = 290086876128.

The previous prime is 725217190331. The next prime is 725217190351. The reversal of 725217190340 is 43091712527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 413415564676 + 311801625664 = 642974^2 + 558392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18130429739 + ... + 18130429778.

It is an arithmetic number, because the mean of its divisors is an integer number (126913008313).

Almost surely, 2^725217190340 is an apocalyptic number.

It is an amenable number.

725217190340 is an abundant number, since it is smaller than the sum of its proper divisors (797738909416).

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

725217190340 is a wasteful number, since it uses less digits than its factorization.

725217190340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36260859526 (or 36260859524 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 725217190340 in words is "seven hundred twenty-five billion, two hundred seventeen million, one hundred ninety thousand, three hundred forty".