90000000000007 has 4 divisors (see below), whose sum is σ = 90000522908296. Its totient is φ = 89999477091720.

The previous prime is 89999999999993. The next prime is 90000000000077. The reversal of 90000000000007 is 70000000000009.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90000000000007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89999999999891 and 89999999999900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90000000000077) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 261195888 + ... + 261540229.

It is an arithmetic number, because the mean of its divisors is an integer number (22500130727074).

Almost surely, 2^{90000000000007} is an apocalyptic number.

90000000000007 is a deficient number, since it is larger than the sum of its proper divisors (522908289).

90000000000007 is a wasteful number, since it uses less digits than its factorization.

90000000000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522908288.

The product of its (nonzero) digits is 63, while the sum is 16.

The spelling of 90000000000007 in words is "ninety trillion, seven", and thus it is an aban number and an uban number.