1478128057 has 16 divisors (see below), whose sum is σ = 1748880000. Its totient is φ = 1222341120.

The previous prime is 1478128033. The next prime is 1478128063. The reversal of 1478128057 is 7508218741.

It is not a de Polignac number, because 1478128057 - 2⁷ = 1478127929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1478128007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420694 + ... + 424192.

It is an arithmetic number, because the mean of its divisors is an integer number (109305000).

Almost surely, 2^1478128057 is an apocalyptic number.

It is an amenable number.

1478128057 is a deficient number, since it is larger than the sum of its proper divisors (270751943).

1478128057 is a wasteful number, since it uses less digits than its factorization.

1478128057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616.

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 1478128057 is about 38446.4310047110. The cubic root of 1478128057 is about 1139.1231733592.

The spelling of 1478128057 in words is "one billion, four hundred seventy-eight million, one hundred twenty-eight thousand, fifty-seven".