2738339872849 has 9 divisors (see below), whose sum is σ = 3185429245257. Its totient is φ = 2347138533684.

The previous prime is 2738339872847. The next prime is 2738339872909. The reversal of 2738339872849 is 9482789338372.

The square root of 2738339872849 is 1654793.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2738339872849 - 2¹ = 2738339872847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2738339872847) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11465352 + ... + 11701750.

Almost surely, 2^{2738339872849} is an apocalyptic number.

2738339872849 is the 1654793-rd square number.

2738339872849 is the 827397-th centered octagonal number.

It is an amenable number.

2738339872849 is a deficient number, since it is larger than the sum of its proper divisors (447089372408).

2738339872849 is an frugal number, since it uses more digits than its factorization.

2738339872849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472812 (or 236406 counting only the distinct ones).

The product of its digits is 877879296, while the sum is 73.

The spelling of 2738339872849 in words is "two trillion, seven hundred thirty-eight billion, three hundred thirty-nine million, eight hundred seventy-two thousand, eight hundred forty-nine".