75406429944 has 24 divisors (see below), whose sum is σ = 204225747960. Its totient is φ = 25135476624.

The previous prime is 75406429919. The next prime is 75406429951. The reversal of 75406429944 is 44992460457.

75406429944 is a `hidden beast` number, since 7 + 540 + 6 + 4 + 2 + 9 + 94 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×75406429944² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 523655692 + ... + 523655835.

It is an arithmetic number, because the mean of its divisors is an integer number (8509406165).

Almost surely, 2^75406429944 is an apocalyptic number.

It is an amenable number.

75406429944 is an abundant number, since it is smaller than the sum of its proper divisors (128819318016).

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

75406429944 is a wasteful number, since it uses less digits than its factorization.

75406429944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047311539 (or 1047311532 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 75406429944 in words is "seventy-five billion, four hundred six million, four hundred twenty-nine thousand, nine hundred forty-four".