90918141446 has 16 divisors (see below), whose sum is σ = 148780316160. Its totient is φ = 41324990280.

The previous prime is 90918141437. The next prime is 90918141493. The reversal of 90918141446 is 64414181909.

It is a happy number.

It is a super-2 number, since 2×90918141446² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90918141446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821795 + ... + 925841.

It is an arithmetic number, because the mean of its divisors is an integer number (9298769760).

Almost surely, 2^90918141446 is an apocalyptic number.

90918141446 is a deficient number, since it is larger than the sum of its proper divisors (57862174714).

90918141446 is a wasteful number, since it uses less digits than its factorization.

90918141446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143779.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 90918141446 in words is "ninety billion, nine hundred eighteen million, one hundred forty-one thousand, four hundred forty-six".