43526474387 has 16 divisors (see below), whose sum is σ = 49994133120. Its totient is φ = 37478232000.

The previous prime is 43526474371. The next prime is 43526474417. The reversal of 43526474387 is 78347462534.

It is a happy number.

It is not a de Polignac number, because 43526474387 - 2⁴ = 43526474371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43526474687) 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, 980012 + ... + 1023462.

It is an arithmetic number, because the mean of its divisors is an integer number (3124633320).

Almost surely, 2^43526474387 is an apocalyptic number.

43526474387 is a deficient number, since it is larger than the sum of its proper divisors (6467658733).

43526474387 is a wasteful number, since it uses less digits than its factorization.

43526474387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48274.

The product of its digits is 13547520, while the sum is 53.

The spelling of 43526474387 in words is "forty-three billion, five hundred twenty-six million, four hundred seventy-four thousand, three hundred eighty-seven".