140252640642 has 40 divisors (see below), whose sum is σ = 314385872592. Its totient is φ = 46733614200.

The previous prime is 140252640641. The next prime is 140252640653. The reversal of 140252640642 is 246046252041.

140252640642 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 5 + 2 + 6 + 4 + 0 + 642 = 666.

It is a super-3 number, since 3×140252640642³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140252640597 and 140252640606.

It is not an unprimeable number, because it can be changed into a prime (140252640641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 283917 + ... + 600927.

Almost surely, 2^140252640642 is an apocalyptic number.

140252640642 is an abundant number, since it is smaller than the sum of its proper divisors (174133231950).

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

140252640642 is a wasteful number, since it uses less digits than its factorization.

140252640642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319756 (or 319747 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 140252640642 its reverse (246046252041), we get a palindrome (386298892683).

The spelling of 140252640642 in words is "one hundred forty billion, two hundred fifty-two million, six hundred forty thousand, six hundred forty-two".