1087693640640 has 84 divisors (see below), whose sum is σ = 3741212928024. Its totient is φ = 290051636736.

The previous prime is 1087693640633. The next prime is 1087693640701. The reversal of 1087693640640 is 460463967801.

1087693640640 is a `hidden beast` number, since 108 + 7 + 6 + 93 + 6 + 406 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188832822 + ... + 188838581.

Almost surely, 2^{1087693640640} is an apocalyptic number.

1087693640640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087693640640 is an abundant number, since it is smaller than the sum of its proper divisors (2653519287384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1087693640640 is a wasteful number, since it uses less digits than its factorization.

1087693640640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377671426 (or 377671413 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 1087693640640 in words is "one trillion, eighty-seven billion, six hundred ninety-three million, six hundred forty thousand, six hundred forty".