97128772342 has 16 divisors (see below), whose sum is σ = 166528670112. Its totient is φ = 41621065920.

The previous prime is 97128772339. The next prime is 97128772379. The reversal of 97128772342 is 24327782179.

It is a self number, because there is not a number n which added to its sum of digits gives 97128772342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352933 + ... + 564640.

It is an arithmetic number, because the mean of its divisors is an integer number (10408041882).

Almost surely, 2^97128772342 is an apocalyptic number.

97128772342 is a deficient number, since it is larger than the sum of its proper divisors (69399897770).

97128772342 is a wasteful number, since it uses less digits than its factorization.

97128772342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925143.

The product of its digits is 2370816, while the sum is 52.

The spelling of 97128772342 in words is "ninety-seven billion, one hundred twenty-eight million, seven hundred seventy-two thousand, three hundred forty-two".