988721520433 has 16 divisors (see below), whose sum is σ = 1026343296000. Its totient is φ = 951857464320.

The previous prime is 988721520419. The next prime is 988721520467. The reversal of 988721520433 is 334025127889.

It is a happy number.

988721520433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 988721520433 - 2⁵ = 988721520401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988721520133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342993 + ... + 1447441.

It is an arithmetic number, because the mean of its divisors is an integer number (64146456000).

Almost surely, 2^988721520433 is an apocalyptic number.

It is an amenable number.

988721520433 is a deficient number, since it is larger than the sum of its proper divisors (37621775567).

988721520433 is a wasteful number, since it uses less digits than its factorization.

988721520433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104792.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 988721520433 in words is "nine hundred eighty-eight billion, seven hundred twenty-one million, five hundred twenty thousand, four hundred thirty-three".