1087276400639 has 8 divisors (see below), whose sum is σ = 1277359687632. Its totient is φ = 912399776640.

The previous prime is 1087276400621. The next prime is 1087276400653. The reversal of 1087276400639 is 9360046727801.

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

It is a de Polignac number, because none of the positive numbers 2^k-1087276400639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087276400659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3801665594 + ... + 3801665879.

It is an arithmetic number, because the mean of its divisors is an integer number (159669960954).

Almost surely, 2^{1087276400639} is an apocalyptic number.

1087276400639 is a deficient number, since it is larger than the sum of its proper divisors (190083286993).

1087276400639 is a wasteful number, since it uses less digits than its factorization.

1087276400639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7603331497.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 1087276400639 in words is "one trillion, eighty-seven billion, two hundred seventy-six million, four hundred thousand, six hundred thirty-nine".