2247678271985 has 8 divisors (see below), whose sum is σ = 2770111600296. Its totient is φ = 1749544168320.

The previous prime is 2247678271931. The next prime is 2247678271987. The reversal of 2247678271985 is 5891728767422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 894671948641 + 1353006323344 = 945871^2 + 1163188^2 .

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

It is not a de Polignac number, because 2247678271985 - 2⁶ = 2247678271921 is a prime.

It is a super-2 number, since 2×2247678271985² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2247678271987) 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, 6074805956 + ... + 6074806325.

It is an arithmetic number, because the mean of its divisors is an integer number (346263950037).

Almost surely, 2^{2247678271985} is an apocalyptic number.

It is an amenable number.

2247678271985 is a deficient number, since it is larger than the sum of its proper divisors (522433328311).

2247678271985 is a wasteful number, since it uses less digits than its factorization.

2247678271985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12149612323.

The product of its digits is 189665280, while the sum is 68.

The spelling of 2247678271985 in words is "two trillion, two hundred forty-seven billion, six hundred seventy-eight million, two hundred seventy-one thousand, nine hundred eighty-five".