75858638878 has 32 divisors (see below), whose sum is σ = 126360000000. Its totient is φ = 33863545920.

The previous prime is 75858638861. The next prime is 75858638927. The reversal of 75858638878 is 87883685857.

It is a self number, because there is not a number n which added to its sum of digits gives 75858638878.

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, 1320498 + ... + 1376746.

It is an arithmetic number, because the mean of its divisors is an integer number (3948750000).

Almost surely, 2^75858638878 is an apocalyptic number.

75858638878 is a deficient number, since it is larger than the sum of its proper divisors (50501361122).

75858638878 is a wasteful number, since it uses less digits than its factorization.

75858638878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57360.

The product of its digits is 722534400, while the sum is 73.

The spelling of 75858638878 in words is "seventy-five billion, eight hundred fifty-eight million, six hundred thirty-eight thousand, eight hundred seventy-eight".