1350778077878 has 32 divisors (see below), whose sum is σ = 2110966671360. Its totient is φ = 647888155200.

The previous prime is 1350778077877. The next prime is 1350778077889. The reversal of 1350778077878 is 8787708770531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350778077877) 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, 101198 + ... + 1646753.

It is an arithmetic number, because the mean of its divisors is an integer number (65967708480).

Almost surely, 2^{1350778077878} is an apocalyptic number.

1350778077878 is a deficient number, since it is larger than the sum of its proper divisors (760188593482).

1350778077878 is a wasteful number, since it uses less digits than its factorization.

1350778077878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748172.

The product of its (nonzero) digits is 129077760, while the sum is 68.

The spelling of 1350778077878 in words is "one trillion, three hundred fifty billion, seven hundred seventy-eight million, seventy-seven thousand, eight hundred seventy-eight".