90144001863 has 6 divisors (see below), whose sum is σ = 130208002704. Its totient is φ = 60096001236.

The previous prime is 90144001841. The next prime is 90144001919. The reversal of 90144001863 is 36810044109.

It is not a de Polignac number, because 90144001863 - 2⁹ = 90144001351 is a prime.

It is a super-3 number, since 3×90144001863³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90144001963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5008000095 + ... + 5008000112.

It is an arithmetic number, because the mean of its divisors is an integer number (21701333784).

Almost surely, 2^90144001863 is an apocalyptic number.

90144001863 is a deficient number, since it is larger than the sum of its proper divisors (40064000841).

90144001863 is a wasteful number, since it uses less digits than its factorization.

90144001863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016000213 (or 10016000210 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 90144001863 in words is "ninety billion, one hundred forty-four million, one thousand, eight hundred sixty-three".