4892271961 has 4 divisors (see below), whose sum is σ = 4937155300. Its totient is φ = 4847388624.

The previous prime is 4892271959. The next prime is 4892271973. The reversal of 4892271961 is 1691722984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1307256336 + 3585015625 = 36156^2 + 59875^2 .

It is a cyclic number.

It is not a de Polignac number, because 4892271961 - 2¹ = 4892271959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4892271061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22441506 + ... + 22441723.

It is an arithmetic number, because the mean of its divisors is an integer number (1234288825).

Almost surely, 2^4892271961 is an apocalyptic number.

It is an amenable number.

4892271961 is a deficient number, since it is larger than the sum of its proper divisors (44883339).

4892271961 is a wasteful number, since it uses less digits than its factorization.

4892271961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44883338.

The product of its digits is 435456, while the sum is 49.

The square root of 4892271961 is about 69944.7779394574. Note that the first 3 decimals coincide. The cubic root of 4892271961 is about 1697.6058525743.

The spelling of 4892271961 in words is "four billion, eight hundred ninety-two million, two hundred seventy-one thousand, nine hundred sixty-one".