1478827881 has 16 divisors (see below), whose sum is σ = 2237472000. Its totient is φ = 964908144.

The previous prime is 1478827853. The next prime is 1478827891. The reversal of 1478827881 is 1887288741.

It is a happy number.

It is not a de Polignac number, because 1478827881 - 2¹¹ = 1478825833 is a prime.

It is a super-2 number, since 2×1478827881² = 4373863803245900322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1478827891) 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, 581406 + ... + 583943.

It is an arithmetic number, because the mean of its divisors is an integer number (139842000).

Almost surely, 2^1478827881 is an apocalyptic number.

It is an amenable number.

1478827881 is a deficient number, since it is larger than the sum of its proper divisors (758644119).

1478827881 is a wasteful number, since it uses less digits than its factorization.

1478827881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165405 (or 1165399 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 54.

The square root of 1478827881 is about 38455.5312146380. The cubic root of 1478827881 is about 1139.3029187146.

The spelling of 1478827881 in words is "one billion, four hundred seventy-eight million, eight hundred twenty-seven thousand, eight hundred eighty-one".