97889057280 has 800 divisors, whose sum is σ = 424371695616. Its totient is φ = 21053177856.

The previous prime is 97889057269. The next prime is 97889057281. The reversal of 97889057280 is 8275098879.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (97889057281) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 24673857 + ... + 24677823.

Almost surely, 2^97889057280 is an apocalyptic number.

97889057280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97889057280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212185847808).

97889057280 is an abundant number, since it is smaller than the sum of its proper divisors (326482638336).

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

97889057280 is a wasteful number, since it uses less digits than its factorization.

97889057280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 97889057280 in words is "ninety-seven billion, eight hundred eighty-nine million, fifty-seven thousand, two hundred eighty".