90143073983 has 8 divisors (see below), whose sum is σ = 91042903776. Its totient is φ = 89243388000.

The previous prime is 90143073961. The next prime is 90143074009. The reversal of 90143073983 is 38937034109.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 90143073983 - 2¹⁸ = 90142811839 is a prime.

It is a super-2 number, since 2×90143073983² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90143073583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587185 + ... + 1642997.

It is an arithmetic number, because the mean of its divisors is an integer number (11380362972).

Almost surely, 2^90143073983 is an apocalyptic number.

90143073983 is a deficient number, since it is larger than the sum of its proper divisors (899829793).

90143073983 is a wasteful number, since it uses less digits than its factorization.

90143073983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71905.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 90143073983 in words is "ninety billion, one hundred forty-three million, seventy-three thousand, nine hundred eighty-three".