90425787460 has 24 divisors (see below), whose sum is σ = 189917302680. Its totient is φ = 36165905664.

The previous prime is 90425787457. The next prime is 90425787467. The reversal of 90425787460 is 6478752409.

It can be written as a sum of positive squares in 4 ways, for example, as 942244416 + 89483543044 = 30696^2 + 299138^2 .

It is a super-2 number, since 2×90425787460² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90425787398 and 90425787407.

It is not an unprimeable number, because it can be changed into a prime (90425787467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104839 + ... + 437998.

It is an arithmetic number, because the mean of its divisors is an integer number (7913220945).

Almost surely, 2^90425787460 is an apocalyptic number.

It is an amenable number.

90425787460 is an abundant number, since it is smaller than the sum of its proper divisors (99491515220).

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

90425787460 is a wasteful number, since it uses less digits than its factorization.

90425787460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551175 (or 551173 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 90425787460 in words is "ninety billion, four hundred twenty-five million, seven hundred eighty-seven thousand, four hundred sixty".