71083196312477 has 2 divisors, whose sum is σ = 71083196312478. Its totient is φ = 71083196312476.

The previous prime is 71083196312459. The next prime is 71083196312497. The reversal of 71083196312477 is 77421369138017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50491739908516 + 20591456403961 = 7105754^2 + 4537781^2 .

It is a cyclic number.

It is not a de Polignac number, because 71083196312477 - 2²² = 71083192118173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71083196312497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35541598156238 + 35541598156239.

It is an arithmetic number, because the mean of its divisors is an integer number (35541598156239).

Almost surely, 2^{71083196312477} is an apocalyptic number.

It is an amenable number.

71083196312477 is a deficient number, since it is larger than the sum of its proper divisors (1).

71083196312477 is an equidigital number, since it uses as much as digits as its factorization.

71083196312477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 71083196312477 in words is "seventy-one trillion, eighty-three billion, one hundred ninety-six million, three hundred twelve thousand, four hundred seventy-seven".