140444414431393 has 2 divisors, whose sum is σ = 140444414431394. Its totient is φ = 140444414431392.

The previous prime is 140444414431379. The next prime is 140444414431439. The reversal of 140444414431393 is 393134414444041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137448025735329 + 2996388696064 = 11723823^2 + 1731008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140444414431393 is a prime.

It is not a weakly prime, because it can be changed into another prime (140444414401393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70222207215696 + 70222207215697.

It is an arithmetic number, because the mean of its divisors is an integer number (70222207215697).

Almost surely, 2^{140444414431393} is an apocalyptic number.

It is an amenable number.

140444414431393 is a deficient number, since it is larger than the sum of its proper divisors (1).

140444414431393 is an equidigital number, since it uses as much as digits as its factorization.

140444414431393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 49.

The spelling of 140444414431393 in words is "one hundred forty trillion, four hundred forty-four billion, four hundred fourteen million, four hundred thirty-one thousand, three hundred ninety-three".