43700373373 has 2 divisors, whose sum is σ = 43700373374. Its totient is φ = 43700373372.

The previous prime is 43700373371. The next prime is 43700373397. The reversal of 43700373373 is 37337300734.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23576681209 + 20123692164 = 153547^2 + 141858^2 .

It is a cyclic number.

It is not a de Polignac number, because 43700373373 - 2¹ = 43700373371 is a prime.

Together with 43700373371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43700373371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21850186686 + 21850186687.

It is an arithmetic number, because the mean of its divisors is an integer number (21850186687).

Almost surely, 2^43700373373 is an apocalyptic number.

It is an amenable number.

43700373373 is a deficient number, since it is larger than the sum of its proper divisors (1).

43700373373 is an equidigital number, since it uses as much as digits as its factorization.

43700373373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 333396, while the sum is 40.

The spelling of 43700373373 in words is "forty-three billion, seven hundred million, three hundred seventy-three thousand, three hundred seventy-three".