897964193280 has 1920 divisors, whose sum is σ = 3835322523648. Its totient is φ = 175177728000.

The previous prime is 897964193279. The next prime is 897964193297. The reversal of 897964193280 is 82391469798.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12300879324 + ... + 12300879396.

Almost surely, 2^897964193280 is an apocalyptic number.

897964193280 is a gapful number since it is divisible by the number (80) 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 897964193280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1917661261824).

897964193280 is an abundant number, since it is smaller than the sum of its proper divisors (2937358330368).

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

897964193280 is a wasteful number, since it uses less digits than its factorization.

897964193280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 897964193280 in words is "eight hundred ninety-seven billion, nine hundred sixty-four million, one hundred ninety-three thousand, two hundred eighty".