90105963645 has 16 divisors (see below), whose sum is σ = 146532978432. Its totient is φ = 47268701760.

The previous prime is 90105963601. The next prime is 90105963749. The reversal of 90105963645 is 54636950109.

It is a happy number.

It is not a de Polignac number, because 90105963645 - 2⁷ = 90105963517 is a prime.

It is a super-4 number, since 4×90105963645⁴ (a number of 45 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90105963594 and 90105963603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49237317 + ... + 49239146.

It is an arithmetic number, because the mean of its divisors is an integer number (9158311152).

Almost surely, 2^90105963645 is an apocalyptic number.

It is an amenable number.

90105963645 is a deficient number, since it is larger than the sum of its proper divisors (56427014787).

90105963645 is a wasteful number, since it uses less digits than its factorization.

90105963645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98476532.

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 90105963645 in words is "ninety billion, one hundred five million, nine hundred sixty-three thousand, six hundred forty-five".