2273947919449 has 8 divisors (see below), whose sum is σ = 2335503076488. Its totient is φ = 2212397873280.

The previous prime is 2273947919437. The next prime is 2273947919461. The reversal of 2273947919449 is 9449197493722.

It is an interprime number because it is at equal distance from previous prime (2273947919437) and next prime (2273947919461).

It can be written as a sum of positive squares in 4 ways, for example, as 659129649424 + 1614818270025 = 811868^2 + 1270755^2 .

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 2273947919449 - 2²⁹ = 2273411048537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2273947919489) 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, 367162 + ... + 2163955.

It is an arithmetic number, because the mean of its divisors is an integer number (291937884561).

Almost surely, 2^{2273947919449} is an apocalyptic number.

It is an amenable number.

2273947919449 is a deficient number, since it is larger than the sum of its proper divisors (61555157039).

2273947919449 is a wasteful number, since it uses less digits than its factorization.

2273947919449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555435.

The product of its digits is 246903552, while the sum is 70.

The spelling of 2273947919449 in words is "two trillion, two hundred seventy-three billion, nine hundred forty-seven million, nine hundred nineteen thousand, four hundred forty-nine".