97812028340 has 48 divisors (see below), whose sum is σ = 224507281152. Its totient is φ = 35576171136.

The previous prime is 97812028313. The next prime is 97812028361. The reversal of 97812028340 is 4382021879.

It is a junction number, because it is equal to n+sod(n) for n = 97812028291 and 97812028300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2790044 + ... + 2824883.

It is an arithmetic number, because the mean of its divisors is an integer number (4677235024).

Almost surely, 2^97812028340 is an apocalyptic number.

It is an amenable number.

97812028340 is an abundant number, since it is smaller than the sum of its proper divisors (126695252812).

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

97812028340 is a wasteful number, since it uses less digits than its factorization.

97812028340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615016 (or 5615014 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 97812028340 in words is "ninety-seven billion, eight hundred twelve million, twenty-eight thousand, three hundred forty".