78887382145806 has 32 divisors (see below), whose sum is σ = 170124473318688. Its totient is φ = 24242585132160.

The previous prime is 78887382145709. The next prime is 78887382145853. The reversal of 78887382145806 is 60854128378887.

It is a super-2 number, since 2×78887382145806² (a number of 29 digits) contains 22 as substring.

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, 634427605 + ... + 634551936.

It is an arithmetic number, because the mean of its divisors is an integer number (5316389791209).

Almost surely, 2^{78887382145806} is an apocalyptic number.

78887382145806 is an abundant number, since it is smaller than the sum of its proper divisors (91237091172882).

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

78887382145806 is a wasteful number, since it uses less digits than its factorization.

78887382145806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268980356.

The product of its (nonzero) digits is 1156055040, while the sum is 75.

The spelling of 78887382145806 in words is "seventy-eight trillion, eight hundred eighty-seven billion, three hundred eighty-two million, one hundred forty-five thousand, eight hundred six".