90318541389 has 8 divisors (see below), whose sum is σ = 122074375872. Its totient is φ = 59387533920.

The previous prime is 90318541387. The next prime is 90318541421. The reversal of 90318541389 is 98314581309.

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

It is not a de Polignac number, because 90318541389 - 2¹ = 90318541387 is a prime.

It is a super-3 number, since 3×90318541389³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90318541387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206206497 + ... + 206206934.

It is an arithmetic number, because the mean of its divisors is an integer number (15259296984).

Almost surely, 2^90318541389 is an apocalyptic number.

It is an amenable number.

90318541389 is a deficient number, since it is larger than the sum of its proper divisors (31755834483).

90318541389 is a wasteful number, since it uses less digits than its factorization.

90318541389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412413507.

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 90318541389 in words is "ninety billion, three hundred eighteen million, five hundred forty-one thousand, three hundred eighty-nine".