84548027763961 has 2 divisors, whose sum is σ = 84548027763962. Its totient is φ = 84548027763960.

The previous prime is 84548027763917. The next prime is 84548027763971. The reversal of 84548027763961 is 16936772084548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82355969850361 + 2192057913600 = 9075019^2 + 1480560^2 .

It is a cyclic number.

It is not a de Polignac number, because 84548027763961 - 2¹⁹ = 84548027239673 is a prime.

It is not a weakly prime, because it can be changed into another prime (84548027763971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42274013881980 + 42274013881981.

It is an arithmetic number, because the mean of its divisors is an integer number (42274013881981).

It is a 1-persistent number, because it is pandigital, but 2⋅84548027763961 = 169096055527922 is not.

Almost surely, 2^{84548027763961} is an apocalyptic number.

It is an amenable number.

84548027763961 is a deficient number, since it is larger than the sum of its proper divisors (1).

84548027763961 is an equidigital number, since it uses as much as digits as its factorization.

84548027763961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 487710720, while the sum is 70.

The spelling of 84548027763961 in words is "eighty-four trillion, five hundred forty-eight billion, twenty-seven million, seven hundred sixty-three thousand, nine hundred sixty-one".