140469792818 has 8 divisors (see below), whose sum is σ = 212876902812. Its totient is φ = 69510825216.

The previous prime is 140469792817. The next prime is 140469792889. The reversal of 140469792818 is 818297964041.

It can be written as a sum of positive squares in 2 ways, for example, as 140282458849 + 187333969 = 374543^2 + 13687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×140469792818² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140469792817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362035355 + ... + 362035742.

Almost surely, 2^140469792818 is an apocalyptic number.

140469792818 is a deficient number, since it is larger than the sum of its proper divisors (72407109994).

140469792818 is an equidigital number, since it uses as much as digits as its factorization.

140469792818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724071196.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The spelling of 140469792818 in words is "one hundred forty billion, four hundred sixty-nine million, seven hundred ninety-two thousand, eight hundred eighteen".