90148749205 has 16 divisors (see below), whose sum is σ = 113917541760. Its totient is φ = 68350506048.

The previous prime is 90148749191. The next prime is 90148749283. The reversal of 90148749205 is 50294784109.

It is a cyclic number.

It is not a de Polignac number, because 90148749205 - 2⁹ = 90148748693 is a prime.

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, 3583347 + ... + 3608416.

It is an arithmetic number, because the mean of its divisors is an integer number (7119846360).

Almost surely, 2^90148749205 is an apocalyptic number.

It is an amenable number.

90148749205 is a deficient number, since it is larger than the sum of its proper divisors (23768792555).

90148749205 is a wasteful number, since it uses less digits than its factorization.

90148749205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191900.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 90148749205 in words is "ninety billion, one hundred forty-eight million, seven hundred forty-nine thousand, two hundred five".