97486512861 has 4 divisors (see below), whose sum is σ = 129982017152. Its totient is φ = 64991008572.

The previous prime is 97486512847. The next prime is 97486512863. The reversal of 97486512861 is 16821568479.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 97486512861 - 2¹⁸ = 97486250717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97486512863) 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 3 ways as a sum of consecutive naturals, for example, 16247752141 + ... + 16247752146.

It is an arithmetic number, because the mean of its divisors is an integer number (32495504288).

Almost surely, 2^97486512861 is an apocalyptic number.

It is an amenable number.

97486512861 is a deficient number, since it is larger than the sum of its proper divisors (32495504291).

97486512861 is a wasteful number, since it uses less digits than its factorization.

97486512861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32495504290.

The product of its digits is 5806080, while the sum is 57.

The spelling of 97486512861 in words is "ninety-seven billion, four hundred eighty-six million, five hundred twelve thousand, eight hundred sixty-one".