97985528080 has 40 divisors (see below), whose sum is σ = 248526932544. Its totient is φ = 35631100800.

The previous prime is 97985528059. The next prime is 97985528087. The reversal of 97985528080 is 8082558979.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (97985528087) 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, 55672716 + ... + 55674475.

Almost surely, 2^97985528080 is an apocalyptic number.

It is an amenable number.

97985528080 is an abundant number, since it is smaller than the sum of its proper divisors (150541404464).

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

97985528080 is a wasteful number, since it uses less digits than its factorization.

97985528080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111347215 (or 111347209 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 61.

The spelling of 97985528080 in words is "ninety-seven billion, nine hundred eighty-five million, five hundred twenty-eight thousand, eighty".