2191464948 has 24 divisors (see below), whose sum is σ = 5127913728. Its totient is φ = 728417536.

The previous prime is 2191464941. The next prime is 2191464983. The reversal of 2191464948 is 8494641912.

2191464948 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2191464897 and 2191464906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2191464941) 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, 254436 + ... + 262907.

It is an arithmetic number, because the mean of its divisors is an integer number (213663072).

Almost surely, 2^2191464948 is an apocalyptic number.

It is an amenable number.

2191464948 is an abundant number, since it is smaller than the sum of its proper divisors (2936448780).

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

2191464948 is a wasteful number, since it uses less digits than its factorization.

2191464948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517703 (or 517701 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 2191464948 is about 46813.0852219761. The cubic root of 2191464948 is about 1298.9073556617.

The spelling of 2191464948 in words is "two billion, one hundred ninety-one million, four hundred sixty-four thousand, nine hundred forty-eight".