2661967392 has 48 divisors (see below), whose sum is σ = 7985904192. Its totient is φ = 760561920.

The previous prime is 2661967379. The next prime is 2661967439. The reversal of 2661967392 is 2937691662.

It is a tau number, because it is divible by the number of its divisors (48).

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, 1979959 + ... + 1981302.

It is an arithmetic number, because the mean of its divisors is an integer number (166373004).

Almost surely, 2^2661967392 is an apocalyptic number.

It is an amenable number.

2661967392 is an abundant number, since it is smaller than the sum of its proper divisors (5323936800).

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

2661967392 is a wasteful number, since it uses less digits than its factorization.

2661967392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961281 (or 3961273 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 51.

The square root of 2661967392 is about 51594.2573548646. The cubic root of 2661967392 is about 1385.9074959762.

The spelling of 2661967392 in words is "two billion, six hundred sixty-one million, nine hundred sixty-seven thousand, three hundred ninety-two".