75447143064 has 64 divisors (see below), whose sum is σ = 218687385600. Its totient is φ = 24055609248.

The previous prime is 75447143059. The next prime is 75447143081. The reversal of 75447143064 is 46034174457.

75447143064 is a `hidden beast` number, since 7 + 5 + 447 + 143 + 0 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7588344 + ... + 7598279.

It is an arithmetic number, because the mean of its divisors is an integer number (3416990400).

Almost surely, 2^75447143064 is an apocalyptic number.

It is an amenable number.

75447143064 is an abundant number, since it is smaller than the sum of its proper divisors (143240242536).

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

75447143064 is a wasteful number, since it uses less digits than its factorization.

75447143064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15186661 (or 15186651 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 75447143064 in words is "seventy-five billion, four hundred forty-seven million, one hundred forty-three thousand, sixty-four".