43750139197 has 16 divisors (see below), whose sum is σ = 44677785600. Its totient is φ = 42829072240.

The previous prime is 43750139179. The next prime is 43750139221. The reversal of 43750139197 is 79193105734.

It is a cyclic number.

It is not a de Polignac number, because 43750139197 - 2¹¹ = 43750137149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43750139197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43750139177) 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, 28953672 + ... + 28955182.

It is an arithmetic number, because the mean of its divisors is an integer number (2792361600).

Almost surely, 2^43750139197 is an apocalyptic number.

It is an amenable number.

43750139197 is a deficient number, since it is larger than the sum of its proper divisors (927646403).

43750139197 is a wasteful number, since it uses less digits than its factorization.

43750139197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 43750139197 in words is "forty-three billion, seven hundred fifty million, one hundred thirty-nine thousand, one hundred ninety-seven".