511628478 has 16 divisors (see below), whose sum is σ = 1023509520. Its totient is φ = 170500736.

The previous prime is 511628477. The next prime is 511628479. The reversal of 511628478 is 874826115.

It is an interprime number because it is at equal distance from previous prime (511628477) and next prime (511628479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511628473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25078 + ... + 40646.

It is an arithmetic number, because the mean of its divisors is an integer number (63969345).

Almost surely, 2^511628478 is an apocalyptic number.

511628478 is an abundant number, since it is smaller than the sum of its proper divisors (511881042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511628478 is a wasteful number, since it uses less digits than its factorization.

511628478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21051.

The product of its digits is 107520, while the sum is 42.

The square root of 511628478 is about 22619.2059542328. The cubic root of 511628478 is about 799.8064521361.

The spelling of 511628478 in words is "five hundred eleven million, six hundred twenty-eight thousand, four hundred seventy-eight".