140563697838 has 16 divisors (see below), whose sum is σ = 297664301520. Its totient is φ = 44098414976.

The previous prime is 140563697803. The next prime is 140563697849. The reversal of 140563697838 is 838796365041.

It is a congruent number.

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, 689037633 + ... + 689037836.

It is an arithmetic number, because the mean of its divisors is an integer number (18604018845).

Almost surely, 2^140563697838 is an apocalyptic number.

140563697838 is an abundant number, since it is smaller than the sum of its proper divisors (157100603682).

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

140563697838 is a wasteful number, since it uses less digits than its factorization.

140563697838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378075491.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 140563697838 in words is "one hundred forty billion, five hundred sixty-three million, six hundred ninety-seven thousand, eight hundred thirty-eight".