90435649062 has 128 divisors (see below), whose sum is σ = 208466804736. Its totient is φ = 25899840000.

The previous prime is 90435649061. The next prime is 90435649067. The reversal of 90435649062 is 26094653409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90435649061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66447262 + ... + 66448622.

It is an arithmetic number, because the mean of its divisors is an integer number (1628646912).

Almost surely, 2^90435649062 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90435649062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104233402368).

90435649062 is an abundant number, since it is smaller than the sum of its proper divisors (118031155674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90435649062 is a wasteful number, since it uses less digits than its factorization.

90435649062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 90435649062 in words is "ninety billion, four hundred thirty-five million, six hundred forty-nine thousand, sixty-two".