75278023788 has 576 divisors, whose sum is σ = 226514534400. Its totient is φ = 19319731200.

The previous prime is 75278023747. The next prime is 75278023853. The reversal of 75278023788 is 88732087257.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 845820448 + ... + 845820536.

It is an arithmetic number, because the mean of its divisors is an integer number (393254400).

Almost surely, 2^75278023788 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 75278023788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113257267200).

75278023788 is an abundant number, since it is smaller than the sum of its proper divisors (151236510612).

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

75278023788 is a wasteful number, since it uses less digits than its factorization.

75278023788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 57.

The spelling of 75278023788 in words is "seventy-five billion, two hundred seventy-eight million, twenty-three thousand, seven hundred eighty-eight".