97865251582039 has 2 divisors, whose sum is σ = 97865251582040. Its totient is φ = 97865251582038.

The previous prime is 97865251582037. The next prime is 97865251582081. The reversal of 97865251582039 is 93028515256879.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97865251582039 - 2¹ = 97865251582037 is a prime.

It is a super-3 number, since 3×97865251582039³ (a number of 43 digits) contains 333 as substring.

Together with 97865251582037, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97865251582037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48932625791019 + 48932625791020.

It is an arithmetic number, because the mean of its divisors is an integer number (48932625791020).

Almost surely, 2^{97865251582039} is an apocalyptic number.

97865251582039 is a deficient number, since it is larger than the sum of its proper divisors (1).

97865251582039 is an equidigital number, since it uses as much as digits as its factorization.

97865251582039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592000, while the sum is 70.

The spelling of 97865251582039 in words is "ninety-seven trillion, eight hundred sixty-five billion, two hundred fifty-one million, five hundred eighty-two thousand, thirty-nine".