725047427101663 has 4 divisors (see below), whose sum is σ = 767697275754720. Its totient is φ = 682397578448608.

The previous prime is 725047427101643. The next prime is 725047427101681. The reversal of 725047427101663 is 366101724740527.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 725047427101663 - 2⁵ = 725047427101631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725047427101643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21324924326503 + ... + 21324924326536.

It is an arithmetic number, because the mean of its divisors is an integer number (191924318938680).

Almost surely, 2^{725047427101663} is an apocalyptic number.

725047427101663 is a deficient number, since it is larger than the sum of its proper divisors (42649848653057).

725047427101663 is a wasteful number, since it uses less digits than its factorization.

725047427101663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42649848653056.

The product of its (nonzero) digits is 11854080, while the sum is 55.

The spelling of 725047427101663 in words is "seven hundred twenty-five trillion, forty-seven billion, four hundred twenty-seven million, one hundred one thousand, six hundred sixty-three".