90063788447 has 16 divisors (see below), whose sum is σ = 96294223872. Its totient is φ = 84027218880.

The previous prime is 90063788387. The next prime is 90063788459. The reversal of 90063788447 is 74488736009.

It is a cyclic number.

It is not a de Polignac number, because 90063788447 - 2¹⁰ = 90063787423 is a prime.

It is a super-2 number, since 2×90063788447² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90063788392 and 90063788401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90063781447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5467778 + ... + 5484224.

It is an arithmetic number, because the mean of its divisors is an integer number (6018388992).

Almost surely, 2^90063788447 is an apocalyptic number.

90063788447 is a deficient number, since it is larger than the sum of its proper divisors (6230435425).

90063788447 is a wasteful number, since it uses less digits than its factorization.

90063788447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22318.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 90063788447 in words is "ninety billion, sixty-three million, seven hundred eighty-eight thousand, four hundred forty-seven".