74154369969 has 45 divisors (see below), whose sum is σ = 112487460393. Its totient is φ = 48683028888.

The previous prime is 74154369941. The next prime is 74154370013. The reversal of 74154369969 is 96996345147.

The square root of 74154369969 is 272313.

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

It is not a de Polignac number, because 74154369969 - 2¹¹ = 74154367921 is a prime.

It is a super-2 number, since 2×74154369969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74154365969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 193614352 + ... + 193614734.

Almost surely, 2^74154369969 is an apocalyptic number.

74154369969 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

74154369969 is the 272313-rd square number.

74154369969 is the 136157-th centered octagonal number.

It is an amenable number.

74154369969 is a deficient number, since it is larger than the sum of its proper divisors (38333090424).

74154369969 is an frugal number, since it uses more digits than its factorization.

74154369969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 465 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The spelling of 74154369969 in words is "seventy-four billion, one hundred fifty-four million, three hundred sixty-nine thousand, nine hundred sixty-nine".