1087151888639 has 4 divisors (see below), whose sum is σ = 1087227363024. Its totient is φ = 1087076414256.

The previous prime is 1087151888629. The next prime is 1087151888677. The reversal of 1087151888639 is 9368881517801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087151888639 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 (1087151888629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37715582 + ... + 37744395.

It is an arithmetic number, because the mean of its divisors is an integer number (271806840756).

Almost surely, 2^{1087151888639} is an apocalyptic number.

1087151888639 is a deficient number, since it is larger than the sum of its proper divisors (75474385).

1087151888639 is an equidigital number, since it uses as much as digits as its factorization.

1087151888639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75474384.

The product of its (nonzero) digits is 23224320, while the sum is 65.

The spelling of 1087151888639 in words is "one trillion, eighty-seven billion, one hundred fifty-one million, eight hundred eighty-eight thousand, six hundred thirty-nine".