97097139420 has 48 divisors (see below), whose sum is σ = 272589394560. Its totient is φ = 25824246336.

The previous prime is 97097139343. The next prime is 97097139493. The reversal of 97097139420 is 2493179079.

97097139420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2112202 + ... + 2157681.

It is an arithmetic number, because the mean of its divisors is an integer number (5678945720).

Almost surely, 2^97097139420 is an apocalyptic number.

It is an amenable number.

97097139420 is an abundant number, since it is smaller than the sum of its proper divisors (175492255140).

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

97097139420 is a wasteful number, since it uses less digits than its factorization.

97097139420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270274 (or 4270272 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 51.

The spelling of 97097139420 in words is "ninety-seven billion, ninety-seven million, one hundred thirty-nine thousand, four hundred twenty".