1087428774819 has 16 divisors (see below), whose sum is σ = 1489204356768. Its totient is φ = 705305820672.

The previous prime is 1087428774793. The next prime is 1087428774877. The reversal of 1087428774819 is 9184778247801.

It is not a de Polignac number, because 1087428774819 - 2⁹ = 1087428774307 is a prime.

It is a super-2 number, since 2×1087428774819² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1087428774819.

It is not an unprimeable number, because it can be changed into a prime (1087428774899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1129729 + ... + 1857725.

It is an arithmetic number, because the mean of its divisors is an integer number (93075272298).

Almost surely, 2^{1087428774819} is an apocalyptic number.

1087428774819 is a deficient number, since it is larger than the sum of its proper divisors (401775581949).

1087428774819 is a wasteful number, since it uses less digits than its factorization.

1087428774819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741494.

The product of its (nonzero) digits is 50577408, while the sum is 66.

The spelling of 1087428774819 in words is "one trillion, eighty-seven billion, four hundred twenty-eight million, seven hundred seventy-four thousand, eight hundred nineteen".