2148927864 has 32 divisors (see below), whose sum is σ = 5445917520. Its totient is φ = 706496256.

The previous prime is 2148927863. The next prime is 2148927871. The reversal of 2148927864 is 4687298412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148927863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611527 + ... + 615030.

Almost surely, 2^2148927864 is an apocalyptic number.

2148927864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2148927864 is an abundant number, since it is smaller than the sum of its proper divisors (3296989656).

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

2148927864 is a wasteful number, since it uses less digits than its factorization.

2148927864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226639 (or 1226635 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 2148927864 is about 46356.5298960136. The cubic root of 2148927864 is about 1290.4483076174.

The spelling of 2148927864 in words is "two billion, one hundred forty-eight million, nine hundred twenty-seven thousand, eight hundred sixty-four".