97102988478679 has 4 divisors (see below), whose sum is σ = 102213672082840. Its totient is φ = 91992304874520.

The previous prime is 97102988478677. The next prime is 97102988478707. The reversal of 97102988478679 is 97687488920179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97102988478679 - 2¹ = 97102988478677 is a prime.

It is a super-2 number, since 2×97102988478679² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97102988478596 and 97102988478605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97102988478677) 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, 2555341802052 + ... + 2555341802089.

It is an arithmetic number, because the mean of its divisors is an integer number (25553418020710).

Almost surely, 2^{97102988478679} is an apocalyptic number.

97102988478679 is a deficient number, since it is larger than the sum of its proper divisors (5110683604161).

97102988478679 is a wasteful number, since it uses less digits than its factorization.

97102988478679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110683604160.

The product of its (nonzero) digits is 6145155072, while the sum is 85.

The spelling of 97102988478679 in words is "ninety-seven trillion, one hundred two billion, nine hundred eighty-eight million, four hundred seventy-eight thousand, six hundred seventy-nine".