97431783671 has 2 divisors, whose sum is σ = 97431783672. Its totient is φ = 97431783670.

The previous prime is 97431783649. The next prime is 97431783697. The reversal of 97431783671 is 17638713479.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97431783671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97431783611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48715891835 + 48715891836.

It is an arithmetic number, because the mean of its divisors is an integer number (48715891836).

Almost surely, 2^97431783671 is an apocalyptic number.

97431783671 is a deficient number, since it is larger than the sum of its proper divisors (1).

97431783671 is an equidigital number, since it uses as much as digits as its factorization.

97431783671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 56.

The spelling of 97431783671 in words is "ninety-seven billion, four hundred thirty-one million, seven hundred eighty-three thousand, six hundred seventy-one".