90504145460 has 12 divisors (see below), whose sum is σ = 190058705508. Its totient is φ = 36201658176.

The previous prime is 90504145427. The next prime is 90504145469. The reversal of 90504145460 is 6454140509.

It can be written as a sum of positive squares in 2 ways, for example, as 44827052176 + 45677093284 = 211724^2 + 213722^2 .

It is a super-2 number, since 2×90504145460² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90504145469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2262603617 + ... + 2262603656.

It is an arithmetic number, because the mean of its divisors is an integer number (15838225459).

Almost surely, 2^90504145460 is an apocalyptic number.

It is an amenable number.

90504145460 is an abundant number, since it is smaller than the sum of its proper divisors (99554560048).

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

90504145460 is a wasteful number, since it uses less digits than its factorization.

90504145460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525207282 (or 4525207280 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 90504145460 its reverse (6454140509), we get a palindrome (96958285969).

The spelling of 90504145460 in words is "ninety billion, five hundred four million, one hundred forty-five thousand, four hundred sixty".