75673371872 has 144 divisors (see below), whose sum is σ = 189421400448. Its totient is φ = 29538754560.

The previous prime is 75673371853. The next prime is 75673371881. The reversal of 75673371872 is 27817337657.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780548 + ... + 872124.

It is an arithmetic number, because the mean of its divisors is an integer number (1315426392).

Almost surely, 2^75673371872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75673371872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94710700224).

75673371872 is an abundant number, since it is smaller than the sum of its proper divisors (113748028576).

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

75673371872 is a wasteful number, since it uses less digits than its factorization.

75673371872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91649 (or 91634 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 56.

The spelling of 75673371872 in words is "seventy-five billion, six hundred seventy-three million, three hundred seventy-one thousand, eight hundred seventy-two".