2148978082 has 16 divisors (see below), whose sum is σ = 3235849920. Its totient is φ = 1070370288.

The previous prime is 2148978077. The next prime is 2148978107. The reversal of 2148978082 is 2808798412.

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, 657769 + ... + 661027.

It is an arithmetic number, because the mean of its divisors is an integer number (202240620).

Almost surely, 2^2148978082 is an apocalyptic number.

2148978082 is a deficient number, since it is larger than the sum of its proper divisors (1086871838).

2148978082 is a wasteful number, since it uses less digits than its factorization.

2148978082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425.

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 2148978082 is about 46357.0715425381. The cubic root of 2148978082 is about 1290.4583596422.

The spelling of 2148978082 in words is "two billion, one hundred forty-eight million, nine hundred seventy-eight thousand, eighty-two".