43598117997 has 32 divisors (see below), whose sum is σ = 74533621760. Its totient is φ = 24671323440.

The previous prime is 43598117987. The next prime is 43598117999. The reversal of 43598117997 is 79971189534.

It is not a de Polignac number, because 43598117997 - 2¹⁶ = 43598052461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43598117999) 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, 1100329 + ... + 1139262.

It is an arithmetic number, because the mean of its divisors is an integer number (2329175680).

Almost surely, 2^43598117997 is an apocalyptic number.

It is an amenable number.

43598117997 is a deficient number, since it is larger than the sum of its proper divisors (30935503763).

43598117997 is a wasteful number, since it uses less digits than its factorization.

43598117997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239710 (or 2239704 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 63.

The spelling of 43598117997 in words is "forty-three billion, five hundred ninety-eight million, one hundred seventeen thousand, nine hundred ninety-seven".