4087321163520 has 144 divisors (see below), whose sum is σ = 14918722344960. Its totient is φ = 934244831232.

The previous prime is 4087321163501. The next prime is 4087321163533. The reversal of 4087321163520 is 253611237804.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76002160 + ... + 76055919.

Almost surely, 2^{4087321163520} is an apocalyptic number.

4087321163520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4087321163520 is an abundant number, since it is smaller than the sum of its proper divisors (10831401181440).

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

4087321163520 is a wasteful number, since it uses less digits than its factorization.

4087321163520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152058110 (or 152058096 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 4087321163520 in words is "four trillion, eighty-seven billion, three hundred twenty-one million, one hundred sixty-three thousand, five hundred twenty".