140285020878 has 40 divisors (see below), whose sum is σ = 321652665048. Its totient is φ = 45674190576.

The previous prime is 140285020847. The next prime is 140285020919. The reversal of 140285020878 is 878020582041.

It is a happy number.

140285020878 is a `hidden beast` number, since 1 + 40 + 28 + 502 + 0 + 87 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10062301 + ... + 10076232.

Almost surely, 2^140285020878 is an apocalyptic number.

140285020878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

140285020878 is an abundant number, since it is smaller than the sum of its proper divisors (181367644170).

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

140285020878 is a wasteful number, since it uses less digits than its factorization.

140285020878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20138590 (or 20138581 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 140285020878 in words is "one hundred forty billion, two hundred eighty-five million, twenty thousand, eight hundred seventy-eight".