78468178205770 has 32 divisors (see below), whose sum is σ = 148131849368448. Its totient is φ = 29870208274368.

The previous prime is 78468178205737. The next prime is 78468178205771. The reversal of 78468178205770 is 7750287186487.

It is a super-2 number, since 2×78468178205770² (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 78468178205770.

It is not an unprimeable number, because it can be changed into a prime (78468178205771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 865858224 + ... + 865948843.

It is an arithmetic number, because the mean of its divisors is an integer number (4629120292764).

Almost surely, 2^{78468178205770} is an apocalyptic number.

78468178205770 is a deficient number, since it is larger than the sum of its proper divisors (69663671162678).

78468178205770 is a wasteful number, since it uses less digits than its factorization.

78468178205770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731807294.

The product of its (nonzero) digits is 295034880, while the sum is 70.

The spelling of 78468178205770 in words is "seventy-eight trillion, four hundred sixty-eight billion, one hundred seventy-eight million, two hundred five thousand, seven hundred seventy".