87459954820 has 96 divisors (see below), whose sum is σ = 214347506688. Its totient is φ = 29356981632.

The previous prime is 87459954817. The next prime is 87459954821. The reversal of 87459954820 is 2845995478.

It is not an unprimeable number, because it can be changed into a prime (87459954821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1500339 + ... + 1557541.

It is an arithmetic number, because the mean of its divisors is an integer number (2232786528).

Almost surely, 2^87459954820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87459954820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107173753344).

87459954820 is an abundant number, since it is smaller than the sum of its proper divisors (126887551868).

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

87459954820 is a wasteful number, since it uses less digits than its factorization.

87459954820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57449 (or 57447 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 87459954820 in words is "eighty-seven billion, four hundred fifty-nine million, nine hundred fifty-four thousand, eight hundred twenty".