90919181914 has 8 divisors (see below), whose sum is σ = 148776843168. Its totient is φ = 41326900860.

The previous prime is 90919181911. The next prime is 90919181917. The reversal of 90919181914 is 41918191909.

It is an interprime number because it is at equal distance from previous prime (90919181911) and next prime (90919181917).

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

It is a super-2 number, since 2×90919181914² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90919181911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066345022 + ... + 2066345065.

It is an arithmetic number, because the mean of its divisors is an integer number (18597105396).

Almost surely, 2^90919181914 is an apocalyptic number.

90919181914 is a deficient number, since it is larger than the sum of its proper divisors (57857661254).

90919181914 is a wasteful number, since it uses less digits than its factorization.

90919181914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132690100.

The product of its (nonzero) digits is 209952, while the sum is 52.

The spelling of 90919181914 in words is "ninety billion, nine hundred nineteen million, one hundred eighty-one thousand, nine hundred fourteen".