2176431005461 has 2 divisors, whose sum is σ = 2176431005462. Its totient is φ = 2176431005460.

The previous prime is 2176431005429. The next prime is 2176431005519. The reversal of 2176431005461 is 1645001346712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2174757786436 + 1673219025 = 1474706^2 + 40905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2176431005461 - 2⁵ = 2176431005429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2176431005401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1088215502730 + 1088215502731.

It is an arithmetic number, because the mean of its divisors is an integer number (1088215502731).

Almost surely, 2^{2176431005461} is an apocalyptic number.

It is an amenable number.

2176431005461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2176431005461 is an equidigital number, since it uses as much as digits as its factorization.

2176431005461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 2176431005461 in words is "two trillion, one hundred seventy-six billion, four hundred thirty-one million, five thousand, four hundred sixty-one".