140642786544 has 80 divisors (see below), whose sum is σ = 391339015200. Its totient is φ = 43267673088.

The previous prime is 140642786521. The next prime is 140642786551. The reversal of 140642786544 is 445687246041.

It is a super-2 number, since 2×140642786544² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 4870902 + ... + 4899690.

It is an arithmetic number, because the mean of its divisors is an integer number (4891737690).

Almost surely, 2^140642786544 is an apocalyptic number.

It is an amenable number.

140642786544 is an abundant number, since it is smaller than the sum of its proper divisors (250696228656).

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

140642786544 is a wasteful number, since it uses less digits than its factorization.

140642786544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36642 (or 36636 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 140642786544 in words is "one hundred forty billion, six hundred forty-two million, seven hundred eighty-six thousand, five hundred forty-four".