140818197329437 has 16 divisors (see below), whose sum is σ = 144509403456000. Its totient is φ = 137145996381744.

The previous prime is 140818197329413. The next prime is 140818197329471. The reversal of 140818197329437 is 734923791818041.

It is a cyclic number.

It is not a de Polignac number, because 140818197329437 - 2²³ = 140818188940829 is a prime.

It is a super-2 number, since 2×140818197329437² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140818197329237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149872614 + ... + 150809272.

It is an arithmetic number, because the mean of its divisors is an integer number (9031837716000).

Almost surely, 2^{140818197329437} is an apocalyptic number.

It is an amenable number.

140818197329437 is a deficient number, since it is larger than the sum of its proper divisors (3691206126563).

140818197329437 is an equidigital number, since it uses as much as digits as its factorization.

140818197329437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946800.

The product of its (nonzero) digits is 73156608, while the sum is 67.

The spelling of 140818197329437 in words is "one hundred forty trillion, eight hundred eighteen billion, one hundred ninety-seven million, three hundred twenty-nine thousand, four hundred thirty-seven".