97574490061 has 2 divisors, whose sum is σ = 97574490062. Its totient is φ = 97574490060.

The previous prime is 97574490053. The next prime is 97574490071. The reversal of 97574490061 is 16009447579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95345705961 + 2228784100 = 308781^2 + 47210^2 .

It is an emirp because it is prime and its reverse (16009447579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97574490061 - 2³ = 97574490053 is a prime.

It is a super-2 number, since 2×97574490061² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97574489990 and 97574490008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97574490071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48787245030 + 48787245031.

It is an arithmetic number, because the mean of its divisors is an integer number (48787245031).

Almost surely, 2^97574490061 is an apocalyptic number.

It is an amenable number.

97574490061 is a deficient number, since it is larger than the sum of its proper divisors (1).

97574490061 is an equidigital number, since it uses as much as digits as its factorization.

97574490061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 97574490061 in words is "ninety-seven billion, five hundred seventy-four million, four hundred ninety thousand, sixty-one".