88039405439 has 4 divisors (see below), whose sum is σ = 88090563120. Its totient is φ = 87988247760.

The previous prime is 88039405409. The next prime is 88039405453. The reversal of 88039405439 is 93450493088.

It is a happy number.

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 88039405439 - 2²⁴ = 88022628223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88039405409) 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, 25576259 + ... + 25579700.

It is an arithmetic number, because the mean of its divisors is an integer number (22022640780).

Almost surely, 2^88039405439 is an apocalyptic number.

88039405439 is a deficient number, since it is larger than the sum of its proper divisors (51157681).

88039405439 is a wasteful number, since it uses less digits than its factorization.

88039405439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51157680.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 88039405439 in words is "eighty-eight billion, thirty-nine million, four hundred five thousand, four hundred thirty-nine".