2261173464 has 72 divisors (see below), whose sum is σ = 6731377380. Its totient is φ = 685201440.

The previous prime is 2261173463. The next prime is 2261173469. The reversal of 2261173464 is 4643711622.

2261173464 is a `hidden beast` number, since 2 + 2 + 611 + 7 + 34 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×2261173464² = 10225810868595518592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261173463) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 121062 + ... + 138485.

Almost surely, 2^2261173464 is an apocalyptic number.

2261173464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2261173464 is an abundant number, since it is smaller than the sum of its proper divisors (4470203916).

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

2261173464 is a wasteful number, since it uses less digits than its factorization.

2261173464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259581 (or 259563 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 2261173464 is about 47551.7976947244. The cubic root of 2261173464 is about 1312.5362097221.

The spelling of 2261173464 in words is "two billion, two hundred sixty-one million, one hundred seventy-three thousand, four hundred sixty-four".