75928687378 has 4 divisors (see below), whose sum is σ = 113893031070. Its totient is φ = 37964343688.

The previous prime is 75928687333. The next prime is 75928687399. The reversal of 75928687378 is 87378682957.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66805190089 + 9123497289 = 258467^2 + 95517^2 .

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 as a sum of consecutive naturals, namely, 18982171843 + ... + 18982171846.

Almost surely, 2^75928687378 is an apocalyptic number.

75928687378 is a deficient number, since it is larger than the sum of its proper divisors (37964343692).

75928687378 is a wasteful number, since it uses less digits than its factorization.

75928687378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37964343691.

The product of its digits is 284497920, while the sum is 70.

The spelling of 75928687378 in words is "seventy-five billion, nine hundred twenty-eight million, six hundred eighty-seven thousand, three hundred seventy-eight".