97812278019570 has 256 divisors, whose sum is σ = 248170711675392. Its totient is φ = 24640817725440.

The previous prime is 97812278019569. The next prime is 97812278019601. The reversal of 97812278019570 is 7591087221879.

97812278019570 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×97812278019570² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6637183242 + ... + 6637197978.

It is an arithmetic number, because the mean of its divisors is an integer number (969416842482).

Almost surely, 2^{97812278019570} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97812278019570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124085355837696).

97812278019570 is an abundant number, since it is smaller than the sum of its proper divisors (150358433655822).

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

97812278019570 is a wasteful number, since it uses less digits than its factorization.

97812278019570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15645.

The product of its (nonzero) digits is 35562240, while the sum is 66.

The spelling of 97812278019570 in words is "ninety-seven trillion, eight hundred twelve billion, two hundred seventy-eight million, nineteen thousand, five hundred seventy".