140618469894 has 64 divisors (see below), whose sum is σ = 334718300160. Its totient is φ = 38536565760.

The previous prime is 140618469877. The next prime is 140618469907. The reversal of 140618469894 is 498964816041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330759 + ... + 625010.

It is an arithmetic number, because the mean of its divisors is an integer number (5229973440).

Almost surely, 2^140618469894 is an apocalyptic number.

140618469894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140618469894 is an abundant number, since it is smaller than the sum of its proper divisors (194099830266).

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

140618469894 is a wasteful number, since it uses less digits than its factorization.

140618469894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955925.

The product of its (nonzero) digits is 11943936, while the sum is 60.

The spelling of 140618469894 in words is "one hundred forty billion, six hundred eighteen million, four hundred sixty-nine thousand, eight hundred ninety-four".