1087428774818 has 8 divisors (see below), whose sum is σ = 1631227226412. Its totient is φ = 543686366016.

The previous prime is 1087428774793. The next prime is 1087428774877. The reversal of 1087428774818 is 8184778247801.

It can be written as a sum of positive squares in 2 ways, for example, as 647311966249 + 440116808569 = 804557^2 + 663413^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13962155 + ... + 14039822.

Almost surely, 2^{1087428774818} is an apocalyptic number.

1087428774818 is a deficient number, since it is larger than the sum of its proper divisors (543798451594).

1087428774818 is a wasteful number, since it uses less digits than its factorization.

1087428774818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28021396.

The product of its (nonzero) digits is 44957696, while the sum is 65.

The spelling of 1087428774818 in words is "one trillion, eighty-seven billion, four hundred twenty-eight million, seven hundred seventy-four thousand, eight hundred eighteen".