43743400818 has 32 divisors (see below), whose sum is σ = 94224513600. Its totient is φ = 13458371136.

The previous prime is 43743400801. The next prime is 43743400823. The reversal of 43743400818 is 81800434734.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43743400818.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1808428 + ... + 1832456.

It is an arithmetic number, because the mean of its divisors is an integer number (2944516050).

Almost surely, 2^43743400818 is an apocalyptic number.

43743400818 is an abundant number, since it is smaller than the sum of its proper divisors (50481112782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43743400818 is a wasteful number, since it uses less digits than its factorization.

43743400818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47386.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 43743400818 in words is "forty-three billion, seven hundred forty-three million, four hundred thousand, eight hundred eighteen".