725480163077 has 4 divisors (see below), whose sum is σ = 725617752300. Its totient is φ = 725342573856.

The previous prime is 725480163049. The next prime is 725480163113. The reversal of 725480163077 is 770361084527.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 340179396001 + 385300767076 = 583249^2 + 620726^2 .

It is a cyclic number.

It is not a de Polignac number, because 725480163077 - 2¹⁸ = 725479900933 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 (725480163017) 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, 68786702 + ... + 68797247.

It is an arithmetic number, because the mean of its divisors is an integer number (181404438075).

Almost surely, 2^725480163077 is an apocalyptic number.

It is an amenable number.

725480163077 is a deficient number, since it is larger than the sum of its proper divisors (137589223).

725480163077 is a wasteful number, since it uses less digits than its factorization.

725480163077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137589222.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 725480163077 in words is "seven hundred twenty-five billion, four hundred eighty million, one hundred sixty-three thousand, seventy-seven".