90342424309 has 4 divisors (see below), whose sum is σ = 90452197216. Its totient is φ = 90232651404.

The previous prime is 90342424297. The next prime is 90342424321.

It is a happy number.

90342424309 is nontrivially palindromic in base 10.

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 an interprime number because it is at equal distance from previous prime (90342424297) and next prime (90342424321).

It is a cyclic number.

It is not a de Polignac number, because 90342424309 - 2⁷ = 90342424181 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 (90342424409) 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, 54885219 + ... + 54886864.

It is an arithmetic number, because the mean of its divisors is an integer number (22613049304).

Almost surely, 2^90342424309 is an apocalyptic number.

It is an amenable number.

90342424309 is a deficient number, since it is larger than the sum of its proper divisors (109772907).

90342424309 is a wasteful number, since it uses less digits than its factorization.

90342424309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109772906.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 90342424309 in words is "ninety billion, three hundred forty-two million, four hundred twenty-four thousand, three hundred nine".