97145045779 has 8 divisors (see below), whose sum is σ = 97519660992. Its totient is φ = 96770651880.

The previous prime is 97145045729. The next prime is 97145045797. The reversal of 97145045779 is 97754054179.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97145045779 - 2¹⁹ = 97144521491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97145045729) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 852864 + ... + 960034.

It is an arithmetic number, because the mean of its divisors is an integer number (12189957624).

Almost surely, 2^97145045779 is an apocalyptic number.

97145045779 is a deficient number, since it is larger than the sum of its proper divisors (374615213).

97145045779 is a wasteful number, since it uses less digits than its factorization.

97145045779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110657.

The product of its (nonzero) digits is 11113200, while the sum is 58.

The spelling of 97145045779 in words is "ninety-seven billion, one hundred forty-five million, forty-five thousand, seven hundred seventy-nine".