87744056739 has 8 divisors (see below), whose sum is σ = 116993586192. Its totient is φ = 58495282560.

The previous prime is 87744056677. The next prime is 87744056753. The reversal of 87744056739 is 93765044778.

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

It is not a de Polignac number, because 87744056739 - 2⁷ = 87744056611 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87744056759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191959 + ... + 460799.

It is an arithmetic number, because the mean of its divisors is an integer number (14624198274).

Almost surely, 2^87744056739 is an apocalyptic number.

87744056739 is a deficient number, since it is larger than the sum of its proper divisors (29249529453).

87744056739 is a wasteful number, since it uses less digits than its factorization.

87744056739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377637.

The product of its (nonzero) digits is 35562240, while the sum is 60.

The spelling of 87744056739 in words is "eighty-seven billion, seven hundred forty-four million, fifty-six thousand, seven hundred thirty-nine".