87728965413 has 8 divisors (see below), whose sum is σ = 116973547776. Its totient is φ = 58485180000.

The previous prime is 87728965393. The next prime is 87728965417. The reversal of 87728965413 is 31456982778.

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

It is not a de Polignac number, because 87728965413 - 2¹⁷ = 87728834341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87728965417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140268 + ... + 441738.

It is an arithmetic number, because the mean of its divisors is an integer number (14621693472).

Almost surely, 2^87728965413 is an apocalyptic number.

It is an amenable number.

87728965413 is a deficient number, since it is larger than the sum of its proper divisors (29244582363).

87728965413 is a wasteful number, since it uses less digits than its factorization.

87728965413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398475.

The product of its digits is 20321280, while the sum is 60.

The spelling of 87728965413 in words is "eighty-seven billion, seven hundred twenty-eight million, nine hundred sixty-five thousand, four hundred thirteen".