7481554269049 has 27 divisors (see below), whose sum is σ = 8734528143621. Its totient is φ = 6389637057720.

The previous prime is 7481554269011. The next prime is 7481554269053. The reversal of 7481554269049 is 9409624551847.

The square root of 7481554269049 is 2735243.

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

It is not a de Polignac number, because 7481554269049 - 2¹⁵ = 7481554236281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7481554249049) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7256599164 + ... + 7256600194.

Almost surely, 2^{7481554269049} is an apocalyptic number.

7481554269049 is the 2735243-rd square number.

7481554269049 is the 1367622-nd centered octagonal number.

It is an amenable number.

7481554269049 is a deficient number, since it is larger than the sum of its proper divisors (1252973874572).

7481554269049 is an frugal number, since it uses more digits than its factorization.

7481554269049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 64.

Multiplying 7481554269049 by its sum of digits (64), we get a square (478819473219136 = 21881944²).

The spelling of 7481554269049 in words is "seven trillion, four hundred eighty-one billion, five hundred fifty-four million, two hundred sixty-nine thousand, forty-nine".