43197372390 has 64 divisors (see below), whose sum is σ = 104018863104. Its totient is φ = 11481015168.

The previous prime is 43197372331. The next prime is 43197372397. The reversal of 43197372390 is 9327379134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43197372397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16318047 + ... + 16320693.

It is an arithmetic number, because the mean of its divisors is an integer number (1625294736).

Almost surely, 2^43197372390 is an apocalyptic number.

43197372390 is an abundant number, since it is smaller than the sum of its proper divisors (60821490714).

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

43197372390 is a wasteful number, since it uses less digits than its factorization.

43197372390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261.

The product of its (nonzero) digits is 857304, while the sum is 48.

The spelling of 43197372390 in words is "forty-three billion, one hundred ninety-seven million, three hundred seventy-two thousand, three hundred ninety".