1087556918840 has 64 divisors (see below), whose sum is σ = 2853647928000. Its totient is φ = 372876653184.

The previous prime is 1087556918831. The next prime is 1087556918887. The reversal of 1087556918840 is 488196557801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39620279 + ... + 39647718.

It is an arithmetic number, because the mean of its divisors is an integer number (44588248875).

Almost surely, 2^{1087556918840} is an apocalyptic number.

1087556918840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087556918840 is an abundant number, since it is smaller than the sum of its proper divisors (1766091009160).

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

1087556918840 is an equidigital number, since it uses as much as digits as its factorization.

1087556918840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79268029 (or 79268011 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 62.

The spelling of 1087556918840 in words is "one trillion, eighty-seven billion, five hundred fifty-six million, nine hundred eighteen thousand, eight hundred forty".