725947068731 has 2 divisors, whose sum is σ = 725947068732. Its totient is φ = 725947068730.

The previous prime is 725947068709. The next prime is 725947068757. The reversal of 725947068731 is 137860749527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725947068731 - 2¹⁰ = 725947067707 is a prime.

It is a super-2 number, since 2×725947068731² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (725947068031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362973534365 + 362973534366.

It is an arithmetic number, because the mean of its divisors is an integer number (362973534366).

It is a 1-persistent number, because it is pandigital, but 2⋅725947068731 = 1451894137462 is not.

Almost surely, 2^725947068731 is an apocalyptic number.

725947068731 is a deficient number, since it is larger than the sum of its proper divisors (1).

725947068731 is an equidigital number, since it uses as much as digits as its factorization.

725947068731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 59.

The spelling of 725947068731 in words is "seven hundred twenty-five billion, nine hundred forty-seven million, sixty-eight thousand, seven hundred thirty-one".