978872153532 has 288 divisors, whose sum is σ = 3002706427392. Its totient is φ = 241621719552.

The previous prime is 978872153431. The next prime is 978872153549. The reversal of 978872153532 is 235351278879.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32704638 + ... + 32734554.

It is an arithmetic number, because the mean of its divisors is an integer number (10426063984).

Almost surely, 2^978872153532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 978872153532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501353213696).

978872153532 is an abundant number, since it is smaller than the sum of its proper divisors (2023834273860).

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

978872153532 is a wasteful number, since it uses less digits than its factorization.

978872153532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30065 (or 30044 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 60.

The spelling of 978872153532 in words is "nine hundred seventy-eight billion, eight hundred seventy-two million, one hundred fifty-three thousand, five hundred thirty-two".