478688250465 has 12 divisors (see below), whose sum is σ = 829726300884. Its totient is φ = 255300400224.

The previous prime is 478688250463. The next prime is 478688250473. The reversal of 478688250465 is 564052886874.

478688250465 is a `hidden beast` number, since 4 + 7 + 8 + 68 + 8 + 2 + 504 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 241417943649 + 237270306816 = 491343^2 + 487104^2 .

It is not a de Polignac number, because 478688250465 - 2¹ = 478688250463 is a prime.

It is a super-2 number, since 2×478688250465² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478688250463) 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, 5318758294 + ... + 5318758383.

It is an arithmetic number, because the mean of its divisors is an integer number (69143858407).

Almost surely, 2^478688250465 is an apocalyptic number.

478688250465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

478688250465 is a deficient number, since it is larger than the sum of its proper divisors (351038050419).

478688250465 is a wasteful number, since it uses less digits than its factorization.

478688250465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637516688 (or 10637516685 counting only the distinct ones).

The product of its (nonzero) digits is 103219200, while the sum is 63.

The spelling of 478688250465 in words is "four hundred seventy-eight billion, six hundred eighty-eight million, two hundred fifty thousand, four hundred sixty-five".