478134206725 has 24 divisors (see below), whose sum is σ = 679749360320. Its totient is φ = 326815931520.

The previous prime is 478134206723. The next prime is 478134206801. The reversal of 478134206725 is 527602431874.

It is not a de Polignac number, because 478134206725 - 2¹ = 478134206723 is a prime.

It is a super-2 number, since 2×478134206725² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478134206723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4309755 + ... + 4419304.

Almost surely, 2^478134206725 is an apocalyptic number.

It is an amenable number.

478134206725 is a deficient number, since it is larger than the sum of its proper divisors (201615153595).

478134206725 is a wasteful number, since it uses less digits than its factorization.

478134206725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8729389 (or 8729384 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 478134206725 in words is "four hundred seventy-eight billion, one hundred thirty-four million, two hundred six thousand, seven hundred twenty-five".