43297387497 has 72 divisors (see below), whose sum is σ = 78965892096. Its totient is φ = 22657973184.

The previous prime is 43297387477. The next prime is 43297387501. The reversal of 43297387497 is 79478379234.

43297387497 is a `hidden beast` number, since 43 + 29 + 7 + 3 + 87 + 497 = 666.

It is not a de Polignac number, because 43297387497 - 2²⁷ = 43163169769 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (43297387477) 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 71 ways as a sum of consecutive naturals, for example, 698358 + ... + 757824.

Almost surely, 2^43297387497 is an apocalyptic number.

It is an amenable number.

43297387497 is a deficient number, since it is larger than the sum of its proper divisors (35668504599).

43297387497 is a wasteful number, since it uses less digits than its factorization.

43297387497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59627 (or 59617 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 63.

The spelling of 43297387497 in words is "forty-three billion, two hundred ninety-seven million, three hundred eighty-seven thousand, four hundred ninety-seven".