2743926985 has 4 divisors (see below), whose sum is σ = 3292712388. Its totient is φ = 2195141584.

The previous prime is 2743926943. The next prime is 2743927001. The reversal of 2743926985 is 5896293472.

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 2186778169 + 557148816 = 46763^2 + 23604^2 .

It is a cyclic number.

It is not a de Polignac number, because 2743926985 - 2¹⁷ = 2743795913 is a prime.

It is a super-2 number, since 2×2743926985² = 15058270598022380450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274392694 + ... + 274392703.

It is an arithmetic number, because the mean of its divisors is an integer number (823178097).

Almost surely, 2^2743926985 is an apocalyptic number.

It is an amenable number.

2743926985 is a deficient number, since it is larger than the sum of its proper divisors (548785403).

2743926985 is an equidigital number, since it uses as much as digits as its factorization.

2743926985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548785402.

The product of its digits is 6531840, while the sum is 55.

The square root of 2743926985 is about 52382.5064787855. The cubic root of 2743926985 is about 1399.9875823729.

The spelling of 2743926985 in words is "two billion, seven hundred forty-three million, nine hundred twenty-six thousand, nine hundred eighty-five".