87440043574 has 8 divisors (see below), whose sum is σ = 141249301200. Its totient is φ = 40356943176.

The previous prime is 87440043571. The next prime is 87440043589. The reversal of 87440043574 is 47534004478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87440043574² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87440043571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1681539274 + ... + 1681539325.

It is an arithmetic number, because the mean of its divisors is an integer number (17656162650).

Almost surely, 2^87440043574 is an apocalyptic number.

87440043574 is a deficient number, since it is larger than the sum of its proper divisors (53809257626).

87440043574 is a wasteful number, since it uses less digits than its factorization.

87440043574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363078614.

The product of its (nonzero) digits is 1505280, while the sum is 46.

The spelling of 87440043574 in words is "eighty-seven billion, four hundred forty million, forty-three thousand, five hundred seventy-four".