725448278347 has 48 divisors (see below), whose sum is σ = 806126946240. Its totient is φ = 652341081600.

The previous prime is 725448278341. The next prime is 725448278371. The reversal of 725448278347 is 743872844527.

It is a happy number.

It is not a de Polignac number, because 725448278347 - 2¹¹ = 725448276299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (725448278341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 710526697 + ... + 710527717.

It is an arithmetic number, because the mean of its divisors is an integer number (16794311380).

Almost surely, 2^725448278347 is an apocalyptic number.

725448278347 is a deficient number, since it is larger than the sum of its proper divisors (80678667893).

725448278347 is a wasteful number, since it uses less digits than its factorization.

725448278347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1691 counting only the distinct ones).

The product of its digits is 84295680, while the sum is 61.

The spelling of 725448278347 in words is "seven hundred twenty-five billion, four hundred forty-eight million, two hundred seventy-eight thousand, three hundred forty-seven".