90144099452 has 24 divisors (see below), whose sum is σ = 176290681392. Its totient is φ = 39975209600.

The previous prime is 90144099443. The next prime is 90144099473. The reversal of 90144099452 is 25499044109.

It is a junction number, because it is equal to n+sod(n) for n = 90144099397 and 90144099406.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24982703 + ... + 24986310.

It is an arithmetic number, because the mean of its divisors is an integer number (7345445058).

Almost surely, 2^90144099452 is an apocalyptic number.

It is an amenable number.

90144099452 is a deficient number, since it is larger than the sum of its proper divisors (86146581940).

90144099452 is a wasteful number, since it uses less digits than its factorization.

90144099452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49969069 (or 49969067 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 90144099452 in words is "ninety billion, one hundred forty-four million, ninety-nine thousand, four hundred fifty-two".