477021474487 has 4 divisors (see below), whose sum is σ = 486021879720. Its totient is φ = 468021069256.

The previous prime is 477021474463. The next prime is 477021474493. The reversal of 477021474487 is 784474120774.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477021474487 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 (477021475487) 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, 4500202537 + ... + 4500202642.

It is an arithmetic number, because the mean of its divisors is an integer number (121505469930).

Almost surely, 2^477021474487 is an apocalyptic number.

477021474487 is a deficient number, since it is larger than the sum of its proper divisors (9000405233).

477021474487 is an equidigital number, since it uses as much as digits as its factorization.

477021474487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000405232.

The product of its (nonzero) digits is 9834496, while the sum is 55.

The spelling of 477021474487 in words is "four hundred seventy-seven billion, twenty-one million, four hundred seventy-four thousand, four hundred eighty-seven".