74249155452 has 24 divisors (see below), whose sum is σ = 174069116032. Its totient is φ = 24632420400.

The previous prime is 74249155441. The next prime is 74249155459. The reversal of 74249155452 is 25455194247.

It is a happy number.

It is a super-2 number, since 2×74249155452² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74249155459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14659624 + ... + 14664687.

Almost surely, 2^74249155452 is an apocalyptic number.

It is an amenable number.

74249155452 is an abundant number, since it is smaller than the sum of its proper divisors (99819960580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74249155452 is a wasteful number, since it uses less digits than its factorization.

74249155452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29324529 (or 29324527 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 48.

The spelling of 74249155452 in words is "seventy-four billion, two hundred forty-nine million, one hundred fifty-five thousand, four hundred fifty-two".