97886422961 has 4 divisors (see below), whose sum is σ = 98986270500. Its totient is φ = 96786575424.

The previous prime is 97886422901. The next prime is 97886422967. The reversal of 97886422961 is 16922468879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16922468879 = 35339 ⋅478861.

It can be written as a sum of positive squares in 2 ways, for example, as 50724048400 + 47162374561 = 225220^2 + 217169^2 .

It is a cyclic number.

It is not a de Polignac number, because 97886422961 - 2¹⁰ = 97886421937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97886422894 and 97886422903.

It is not an unprimeable number, because it can be changed into a prime (97886422967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549923636 + ... + 549923813.

It is an arithmetic number, because the mean of its divisors is an integer number (24746567625).

Almost surely, 2^97886422961 is an apocalyptic number.

It is an amenable number.

97886422961 is a deficient number, since it is larger than the sum of its proper divisors (1099847539).

97886422961 is a wasteful number, since it uses less digits than its factorization.

97886422961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099847538.

The product of its digits is 20901888, while the sum is 62.

The spelling of 97886422961 in words is "ninety-seven billion, eight hundred eighty-six million, four hundred twenty-two thousand, nine hundred sixty-one".