478791783527 has 4 divisors (see below), whose sum is σ = 478793750760. Its totient is φ = 478789816296.

The previous prime is 478791783517. The next prime is 478791783553. The reversal of 478791783527 is 725387197874.

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

It is a cyclic number.

It is not a de Polignac number, because 478791783527 - 2¹⁰ = 478791782503 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 (478791783517) 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, 556808 + ... + 1125885.

It is an arithmetic number, because the mean of its divisors is an integer number (119698437690).

Almost surely, 2^478791783527 is an apocalyptic number.

478791783527 is a deficient number, since it is larger than the sum of its proper divisors (1967233).

478791783527 is a wasteful number, since it uses less digits than its factorization.

478791783527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967232.

The product of its digits is 165957120, while the sum is 68.

The spelling of 478791783527 in words is "four hundred seventy-eight billion, seven hundred ninety-one million, seven hundred eighty-three thousand, five hundred twenty-seven".