90854212339199 has 4 divisors (see below), whose sum is σ = 91658231917536. Its totient is φ = 90050192760864.

The previous prime is 90854212339183. The next prime is 90854212339201. The reversal of 90854212339199 is 99193321245809.

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 90854212339199 - 2⁴ = 90854212339183 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 (90854212339399) 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, 402009788999 + ... + 402009789224.

It is an arithmetic number, because the mean of its divisors is an integer number (22914557979384).

Almost surely, 2^{90854212339199} is an apocalyptic number.

90854212339199 is a deficient number, since it is larger than the sum of its proper divisors (804019578337).

90854212339199 is a wasteful number, since it uses less digits than its factorization.

90854212339199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804019578336.

The product of its (nonzero) digits is 37791360, while the sum is 65.

The spelling of 90854212339199 in words is "ninety trillion, eight hundred fifty-four billion, two hundred twelve million, three hundred thirty-nine thousand, one hundred ninety-nine".