2472471961 has 4 divisors (see below), whose sum is σ = 2495155300. Its totient is φ = 2449788624.

The previous prime is 2472471949. The next prime is 2472471971. The reversal of 2472471961 is 1691742742.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1691742742 = 2 ⋅845871371.

It can be written as a sum of positive squares in 2 ways, for example, as 2066247936 + 406224025 = 45456^2 + 20155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2472471961 - 2¹¹ = 2472469913 is a prime.

It is a super-2 number, since 2×2472471961² = 12226235195862371042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2472471901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11341506 + ... + 11341723.

It is an arithmetic number, because the mean of its divisors is an integer number (623788825).

Almost surely, 2^2472471961 is an apocalyptic number.

It is an amenable number.

2472471961 is a deficient number, since it is larger than the sum of its proper divisors (22683339).

2472471961 is a wasteful number, since it uses less digits than its factorization.

2472471961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22683338.

The product of its digits is 169344, while the sum is 43.

The square root of 2472471961 is about 49723.9576160225. The cubic root of 2472471961 is about 1352.2089052053.

The spelling of 2472471961 in words is "two billion, four hundred seventy-two million, four hundred seventy-one thousand, nine hundred sixty-one".