2734978197 has 16 divisors (see below), whose sum is σ = 4311296640. Its totient is φ = 1508953152.

The previous prime is 2734978189. The next prime is 2734978219. The reversal of 2734978197 is 7918794372.

It is not a de Polignac number, because 2734978197 - 2³ = 2734978189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2734978117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2244858 + ... + 2246075.

It is an arithmetic number, because the mean of its divisors is an integer number (269456040).

Almost surely, 2^2734978197 is an apocalyptic number.

It is an amenable number.

2734978197 is a deficient number, since it is larger than the sum of its proper divisors (1576318443).

2734978197 is a wasteful number, since it uses less digits than its factorization.

2734978197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490972.

The product of its digits is 5334336, while the sum is 57.

The square root of 2734978197 is about 52297.0190068229. The cubic root of 2734978197 is about 1398.4639951562.

The spelling of 2734978197 in words is "two billion, seven hundred thirty-four million, nine hundred seventy-eight thousand, one hundred ninety-seven".