90699444000 has 576 divisors, whose sum is σ = 353021131008. Its totient is φ = 21871104000.

The previous prime is 90699443971. The next prime is 90699444029. The reversal of 90699444000 is 44499609.

It is an interprime number because it is at equal distance from previous prime (90699443971) and next prime (90699444029).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 92267509 + ... + 92268491.

It is an arithmetic number, because the mean of its divisors is an integer number (612883908).

Almost surely, 2^90699444000 is an apocalyptic number.

90699444000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90699444000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176510565504).

90699444000 is an abundant number, since it is smaller than the sum of its proper divisors (262321687008).

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

90699444000 is a wasteful number, since it uses less digits than its factorization.

90699444000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 90699444000 in words is "ninety billion, six hundred ninety-nine million, four hundred forty-four thousand".