2148358278 has 32 divisors (see below), whose sum is σ = 4704791040. Its totient is φ = 648592160.

The previous prime is 2148358237. The next prime is 2148358301. The reversal of 2148358278 is 8728538412.

It is a super-2 number, since 2×2148358278² = 9230886581302250568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42750 + ... + 78257.

It is an arithmetic number, because the mean of its divisors is an integer number (147024720).

Almost surely, 2^2148358278 is an apocalyptic number.

2148358278 is an abundant number, since it is smaller than the sum of its proper divisors (2556432762).

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

2148358278 is a wasteful number, since it uses less digits than its factorization.

2148358278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121292.

The product of its digits is 860160, while the sum is 48.

The square root of 2148358278 is about 46350.3859530857. The cubic root of 2148358278 is about 1290.3342838985.

The spelling of 2148358278 in words is "two billion, one hundred forty-eight million, three hundred fifty-eight thousand, two hundred seventy-eight".