373888640543 has 4 divisors (see below), whose sum is σ = 407878516968. Its totient is φ = 339898764120.

The previous prime is 373888640539. The next prime is 373888640579. The reversal of 373888640543 is 345046888373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345046888373 = 11 ⋅31367898943.

It is a cyclic number.

It is not a de Polignac number, because 373888640543 - 2² = 373888640539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373888640143) 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, 16994938196 + ... + 16994938217.

It is an arithmetic number, because the mean of its divisors is an integer number (101969629242).

Almost surely, 2^373888640543 is an apocalyptic number.

373888640543 is a deficient number, since it is larger than the sum of its proper divisors (33989876425).

373888640543 is a wasteful number, since it uses less digits than its factorization.

373888640543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33989876424.

The product of its (nonzero) digits is 46448640, while the sum is 59.

The spelling of 373888640543 in words is "three hundred seventy-three billion, eight hundred eighty-eight million, six hundred forty thousand, five hundred forty-three".