90260750208 has 64 divisors (see below), whose sum is σ = 239830866000. Its totient is φ = 30077411328.

The previous prime is 90260750197. The next prime is 90260750267. The reversal of 90260750208 is 80205706209.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×90260750208² (a number of 23 digits) contains 22 as substring.

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, 1236718 + ... + 1307666.

Almost surely, 2^90260750208 is an apocalyptic number.

It is an amenable number.

90260750208 is an abundant number, since it is smaller than the sum of its proper divisors (149570115792).

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

90260750208 is a wasteful number, since it uses less digits than its factorization.

90260750208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74279 (or 74267 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 90260750208 in words is "ninety billion, two hundred sixty million, seven hundred fifty thousand, two hundred eight".