725705117111 has 12 divisors (see below), whose sum is σ = 787527389880. Its totient is φ = 668428469280.

The previous prime is 725705117101. The next prime is 725705117149. The reversal of 725705117111 is 111711507527.

It is not a de Polignac number, because 725705117111 - 2⁶ = 725705117047 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 (725705117101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4579481 + ... + 4735298.

It is an arithmetic number, because the mean of its divisors is an integer number (65627282490).

Almost surely, 2^725705117111 is an apocalyptic number.

725705117111 is a deficient number, since it is larger than the sum of its proper divisors (61822272769).

725705117111 is a wasteful number, since it uses less digits than its factorization.

725705117111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9315266 (or 9315253 counting only the distinct ones).

The product of its (nonzero) digits is 17150, while the sum is 38.

The spelling of 725705117111 in words is "seven hundred twenty-five billion, seven hundred five million, one hundred seventeen thousand, one hundred eleven".