77875853638 has 8 divisors (see below), whose sum is σ = 127433215080. Its totient is φ = 35398115280.

The previous prime is 77875853623. The next prime is 77875853677. The reversal of 77875853638 is 83635857877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1769905743 + ... + 1769905786.

It is an arithmetic number, because the mean of its divisors is an integer number (15929151885).

Almost surely, 2^77875853638 is an apocalyptic number.

77875853638 is a deficient number, since it is larger than the sum of its proper divisors (49557361442).

77875853638 is a wasteful number, since it uses less digits than its factorization.

77875853638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539811542.

The product of its digits is 237081600, while the sum is 67.

The spelling of 77875853638 in words is "seventy-seven billion, eight hundred seventy-five million, eight hundred fifty-three thousand, six hundred thirty-eight".