90248196918021 has 8 divisors (see below), whose sum is σ = 120331137441984. Its totient is φ = 60165360503040.

The previous prime is 90248196917929. The next prime is 90248196918023. The reversal of 90248196918021 is 12081969184209.

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

It is not a de Polignac number, because 90248196918021 - 2¹¹ = 90248196915973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90248196918023) 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, 23981596 + ... + 27488421.

It is an arithmetic number, because the mean of its divisors is an integer number (15041392180248).

Almost surely, 2^{90248196918021} is an apocalyptic number.

It is an amenable number.

90248196918021 is a deficient number, since it is larger than the sum of its proper divisors (30082940523963).

90248196918021 is a wasteful number, since it uses less digits than its factorization.

90248196918021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52054491.

The product of its (nonzero) digits is 4478976, while the sum is 60.

The spelling of 90248196918021 in words is "ninety trillion, two hundred forty-eight billion, one hundred ninety-six million, nine hundred eighteen thousand, twenty-one".