140689354658930 has 72 divisors (see below), whose sum is σ = 323801449926444. Its totient is φ = 43851227407680.

The previous prime is 140689354658891. The next prime is 140689354658933. The reversal of 140689354658930 is 39856453986041.

It can be written as a sum of positive squares in 2 ways, for example, as 121882240320841 + 18807114338089 = 11040029^2 + 4336717^2 .

It is not an unprimeable number, because it can be changed into a prime (140689354658933) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1186391669 + ... + 1186510248.

Almost surely, 2^{140689354658930} is an apocalyptic number.

140689354658930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140689354658930 is an abundant number, since it is smaller than the sum of its proper divisors (183112095267514).

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

140689354658930 is a wasteful number, since it uses less digits than its factorization.

140689354658930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372901960 (or 2372901942 counting only the distinct ones).

The product of its (nonzero) digits is 671846400, while the sum is 71.

The spelling of 140689354658930 in words is "one hundred forty trillion, six hundred eighty-nine billion, three hundred fifty-four million, six hundred fifty-eight thousand, nine hundred thirty".