1492795874778 has 32 divisors (see below), whose sum is σ = 3318970486272. Its totient is φ = 444504974400.

The previous prime is 1492795874749. The next prime is 1492795874789. The reversal of 1492795874778 is 8774785972941.

It is a Harshad number since it is a multiple of its sum of digits (78).

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, 308681593 + ... + 308686428.

It is an arithmetic number, because the mean of its divisors is an integer number (103717827696).

Almost surely, 2^{1492795874778} is an apocalyptic number.

1492795874778 is an abundant number, since it is smaller than the sum of its proper divisors (1826174611494).

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

1492795874778 is a wasteful number, since it uses less digits than its factorization.

1492795874778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617368070.

The product of its digits is 1991485440, while the sum is 78.

The spelling of 1492795874778 in words is "one trillion, four hundred ninety-two billion, seven hundred ninety-five million, eight hundred seventy-four thousand, seven hundred seventy-eight".