2148782804 has 24 divisors (see below), whose sum is σ = 4301109120. Its totient is φ = 920147616.

The previous prime is 2148782771. The next prime is 2148782833. The reversal of 2148782804 is 4082878412.

It is a super-2 number, since 2×2148782804² = 9234535077532204832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3617 + ... + 65655.

It is an arithmetic number, because the mean of its divisors is an integer number (179212880).

Almost surely, 2^2148782804 is an apocalyptic number.

It is an amenable number.

2148782804 is an abundant number, since it is smaller than the sum of its proper divisors (2152326316).

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

2148782804 is a wasteful number, since it uses less digits than its factorization.

2148782804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63287 (or 63285 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 44.

The square root of 2148782804 is about 46354.9652572408. The cubic root of 2148782804 is about 1290.4192704020.

The spelling of 2148782804 in words is "two billion, one hundred forty-eight million, seven hundred eighty-two thousand, eight hundred four".