1087557720876 has 96 divisors (see below), whose sum is σ = 3077475528960. Its totient is φ = 329396371200.

The previous prime is 1087557720869. The next prime is 1087557721021. The reversal of 1087557720876 is 6780277557801.

1087557720876 is a `hidden beast` number, since 1 + 0 + 8 + 7 + 557 + 7 + 2 + 0 + 8 + 76 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2130196 + ... + 2590916.

It is an arithmetic number, because the mean of its divisors is an integer number (32057036760).

Almost surely, 2^{1087557720876} 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 1087557720876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1538737764480).

1087557720876 is an abundant number, since it is smaller than the sum of its proper divisors (1989917808084).

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

1087557720876 is a wasteful number, since it uses less digits than its factorization.

1087557720876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462732 (or 462724 counting only the distinct ones).

The product of its (nonzero) digits is 46099200, while the sum is 63.

The spelling of 1087557720876 in words is "one trillion, eighty-seven billion, five hundred fifty-seven million, seven hundred twenty thousand, eight hundred seventy-six".