2172273761 has 8 divisors (see below), whose sum is σ = 2507179584. Its totient is φ = 1843513200.

The previous prime is 2172273721. The next prime is 2172273793. The reversal of 2172273761 is 1673722712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2172273761 - 2¹⁰ = 2172272737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2172273721) 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, 1535555 + ... + 1536968.

It is an arithmetic number, because the mean of its divisors is an integer number (313397448).

Almost surely, 2^2172273761 is an apocalyptic number.

It is an amenable number.

2172273761 is a deficient number, since it is larger than the sum of its proper divisors (334905823).

2172273761 is a wasteful number, since it uses less digits than its factorization.

2172273761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072631.

The product of its digits is 49392, while the sum is 38.

The square root of 2172273761 is about 46607.6577506315. The cubic root of 2172273761 is about 1295.1046184916.

The spelling of 2172273761 in words is "two billion, one hundred seventy-two million, two hundred seventy-three thousand, seven hundred sixty-one".