43026261587 has 4 divisors (see below), whose sum is σ = 43029333456. Its totient is φ = 43023189720.

The previous prime is 43026261583. The next prime is 43026261599. The reversal of 43026261587 is 78516262034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43026261587 - 2² = 43026261583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43026261581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514828 + ... + 1542969.

It is an arithmetic number, because the mean of its divisors is an integer number (10757333364).

Almost surely, 2^43026261587 is an apocalyptic number.

43026261587 is a deficient number, since it is larger than the sum of its proper divisors (3071869).

43026261587 is a wasteful number, since it uses less digits than its factorization.

43026261587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071868.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 43026261587 in words is "forty-three billion, twenty-six million, two hundred sixty-one thousand, five hundred eighty-seven".