97886310722 has 18 divisors (see below), whose sum is σ = 147710108313. Its totient is φ = 48651351672.

The previous prime is 97886310689. The next prime is 97886310727. The reversal of 97886310722 is 22701368879.

It can be written as a sum of positive squares in 2 ways, for example, as 62714684041 + 35171626681 = 250429^2 + 187541^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=221231.

It is a super-2 number, since 2×97886310722² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97886310727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87164453 + ... + 87165575.

Almost surely, 2^97886310722 is an apocalyptic number.

97886310722 is a deficient number, since it is larger than the sum of its proper divisors (49823797591).

97886310722 is an frugal number, since it uses more digits than its factorization.

97886310722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 97886310722 in words is "ninety-seven billion, eight hundred eighty-six million, three hundred ten thousand, seven hundred twenty-two".