971401567049 has 2 divisors, whose sum is σ = 971401567050. Its totient is φ = 971401567048.

The previous prime is 971401567007. The next prime is 971401567093. The reversal of 971401567049 is 940765104179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 959929657600 + 11471909449 = 979760^2 + 107107^2 .

It is a cyclic number.

It is not a de Polignac number, because 971401567049 - 2²⁴ = 971384789833 is a prime.

It is not a weakly prime, because it can be changed into another prime (971401567249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485700783524 + 485700783525.

It is an arithmetic number, because the mean of its divisors is an integer number (485700783525).

Almost surely, 2^971401567049 is an apocalyptic number.

It is an amenable number.

971401567049 is a deficient number, since it is larger than the sum of its proper divisors (1).

971401567049 is an equidigital number, since it uses as much as digits as its factorization.

971401567049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 971401567049 in words is "nine hundred seventy-one billion, four hundred one million, five hundred sixty-seven thousand, forty-nine".