78377170060806 has 32 divisors (see below), whose sum is σ = 167559252231168. Its totient is φ = 24380314474560.

The previous prime is 78377170060793. The next prime is 78377170060817. The reversal of 78377170060806 is 60806007177387.

It is a super-2 number, since 2×78377170060806² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78377170060806.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 6926220046 + ... + 6926231361.

It is an arithmetic number, because the mean of its divisors is an integer number (5236226632224).

Almost surely, 2^{78377170060806} is an apocalyptic number.

78377170060806 is an abundant number, since it is smaller than the sum of its proper divisors (89182082170362).

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

78377170060806 is a wasteful number, since it uses less digits than its factorization.

78377170060806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13852451476.

The product of its (nonzero) digits is 16595712, while the sum is 60.

The spelling of 78377170060806 in words is "seventy-eight trillion, three hundred seventy-seven billion, one hundred seventy million, sixty thousand, eight hundred six".