2148878736 has 45 divisors (see below), whose sum is σ = 6015433099. Its totient is φ = 716107488.

The previous prime is 2148878731. The next prime is 2148878749. The reversal of 2148878736 is 6378788412.

It is a happy number.

The square root of 2148878736 is 46356.

It is a perfect power (a square), and thus also a powerful number.

2148878736 is a `hidden beast` number, since 21 + 488 + 78 + 73 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148878731) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 554341 + ... + 558203.

Almost surely, 2^2148878736 is an apocalyptic number.

2148878736 is the 46356-th square number.

It is an amenable number.

2148878736 is an abundant number, since it is smaller than the sum of its proper divisors (3866554363).

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

2148878736 is an frugal number, since it uses more digits than its factorization.

2148878736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740 (or 3868 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The cubic root of 2148878736 is about 1290.4384736240.

The spelling of 2148878736 in words is "two billion, one hundred forty-eight million, eight hundred seventy-eight thousand, seven hundred thirty-six".