1374073939681 has 27 divisors (see below), whose sum is σ = 1443405749331. Its totient is φ = 1308016445904.

The previous prime is 1374073939663. The next prime is 1374073939691. The reversal of 1374073939681 is 1869393704731.

The square root of 1374073939681 is 1172209.

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

It can be written as a sum of positive squares in only one way, i.e., 720531043281 + 653542896400 = 848841^2 + 808420^2 .

It is not a de Polignac number, because 1374073939681 - 2¹⁵ = 1374073906913 is a prime.

It is a super-2 number, since 2×1374073939681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374073939661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2821506820 + ... + 2821507306.

Almost surely, 2^{1374073939681} is an apocalyptic number.

1374073939681 is the 1172209-th square number.

1374073939681 is the 586105-th centered octagonal number.

It is an amenable number.

1374073939681 is a deficient number, since it is larger than the sum of its proper divisors (69331809650).

1374073939681 is an frugal number, since it uses more digits than its factorization.

1374073939681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 61.

The spelling of 1374073939681 in words is "one trillion, three hundred seventy-four billion, seventy-three million, nine hundred thirty-nine thousand, six hundred eighty-one".