87483440817 has 24 divisors (see below), whose sum is σ = 131478071400. Its totient is φ = 55985653248.

The previous prime is 87483440777. The next prime is 87483440831. The reversal of 87483440817 is 71804438478.

87483440817 is a `hidden beast` number, since 87 + 48 + 3 + 440 + 81 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9025190001 + 78458250816 = 95001^2 + 280104^2 .

It is not a de Polignac number, because 87483440817 - 2⁶ = 87483440753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87483440867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 923592 + ... + 1013897.

It is an arithmetic number, because the mean of its divisors is an integer number (5478252975).

Almost surely, 2^87483440817 is an apocalyptic number.

87483440817 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

87483440817 is a deficient number, since it is larger than the sum of its proper divisors (43994630583).

87483440817 is a wasteful number, since it uses less digits than its factorization.

87483440817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937697 (or 1937694 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 87483440817 in words is "eighty-seven billion, four hundred eighty-three million, four hundred forty thousand, eight hundred seventeen".