1087787502813 has 16 divisors (see below), whose sum is σ = 1582253810496. Its totient is φ = 659257885440.

The previous prime is 1087787502803. The next prime is 1087787502833. The reversal of 1087787502813 is 3182057877801.

It is a happy number.

1087787502813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1087787502813 - 2⁹ = 1087787502301 is a prime.

It is a super-2 number, since 2×1087787502813² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087787502803) 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, 5668645 + ... + 5857397.

It is an arithmetic number, because the mean of its divisors is an integer number (98890863156).

Almost surely, 2^{1087787502813} is an apocalyptic number.

It is an amenable number.

1087787502813 is a deficient number, since it is larger than the sum of its proper divisors (494466307683).

1087787502813 is a wasteful number, since it uses less digits than its factorization.

1087787502813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363404.

The product of its (nonzero) digits is 5268480, while the sum is 57.

The spelling of 1087787502813 in words is "one trillion, eighty-seven billion, seven hundred eighty-seven million, five hundred two thousand, eight hundred thirteen".