97810508273440 has 192 divisors, whose sum is σ = 246895696373760. Its totient is φ = 36535942840320.

The previous prime is 97810508273419. The next prime is 97810508273459. The reversal of 97810508273440 is 4437280501879.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256276032 + ... + 256657408.

It is an arithmetic number, because the mean of its divisors is an integer number (1285915085280).

Almost surely, 2^{97810508273440} 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 97810508273440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123447848186880).

97810508273440 is an abundant number, since it is smaller than the sum of its proper divisors (149085188100320).

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

97810508273440 is a wasteful number, since it uses less digits than its factorization.

97810508273440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383235 (or 383227 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 97810508273440 in words is "ninety-seven trillion, eight hundred ten billion, five hundred eight million, two hundred seventy-three thousand, four hundred forty".