1485890772178 has 16 divisors (see below), whose sum is σ = 2246165328960. Its totient is φ = 737184801136.

The previous prime is 1485890772161. The next prime is 1485890772187. The reversal of 1485890772178 is 8712770985841.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3762913 + ... + 4138996.

It is an arithmetic number, because the mean of its divisors is an integer number (140385333060).

Almost surely, 2^{1485890772178} is an apocalyptic number.

1485890772178 is a deficient number, since it is larger than the sum of its proper divisors (760274556782).

1485890772178 is a wasteful number, since it uses less digits than its factorization.

1485890772178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902641.

The product of its (nonzero) digits is 63221760, while the sum is 67.

The spelling of 1485890772178 in words is "one trillion, four hundred eighty-five billion, eight hundred ninety million, seven hundred seventy-two thousand, one hundred seventy-eight".