89442349621 has 4 divisors (see below), whose sum is σ = 89448712992. Its totient is φ = 89435986252.

The previous prime is 89442349567. The next prime is 89442349651. The reversal of 89442349621 is 12694324498.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89442349621 - 2¹⁵ = 89442316853 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 (89442349651) 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, 3160555 + ... + 3188728.

It is an arithmetic number, because the mean of its divisors is an integer number (22362178248).

Almost surely, 2^89442349621 is an apocalyptic number.

It is an amenable number.

89442349621 is a deficient number, since it is larger than the sum of its proper divisors (6363371).

89442349621 is a wasteful number, since it uses less digits than its factorization.

89442349621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6363370.

The product of its digits is 2985984, while the sum is 52.

The spelling of 89442349621 in words is "eighty-nine billion, four hundred forty-two million, three hundred forty-nine thousand, six hundred twenty-one".