97439543767 has 2 divisors, whose sum is σ = 97439543768. Its totient is φ = 97439543766.

The previous prime is 97439543753. The next prime is 97439543863. The reversal of 97439543767 is 76734593479.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97439543767 - 2²⁷ = 97305326039 is a prime.

It is a super-2 number, since 2×97439543767² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97439543699 and 97439543708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97439540767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48719771883 + 48719771884.

It is an arithmetic number, because the mean of its divisors is an integer number (48719771884).

Almost surely, 2^97439543767 is an apocalyptic number.

97439543767 is a deficient number, since it is larger than the sum of its proper divisors (1).

97439543767 is an equidigital number, since it uses as much as digits as its factorization.

97439543767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120022560, while the sum is 64.

The spelling of 97439543767 in words is "ninety-seven billion, four hundred thirty-nine million, five hundred forty-three thousand, seven hundred sixty-seven".