7775009532061 has 2 divisors, whose sum is σ = 7775009532062. Its totient is φ = 7775009532060.

The previous prime is 7775009532047. The next prime is 7775009532089. The reversal of 7775009532061 is 1602359005777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7764442925625 + 10566606436 = 2786475^2 + 102794^2 .

It is a cyclic number.

It is not a de Polignac number, because 7775009532061 - 2⁵ = 7775009532029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7775009532091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3887504766030 + 3887504766031.

It is an arithmetic number, because the mean of its divisors is an integer number (3887504766031).

Almost surely, 2^{7775009532061} is an apocalyptic number.

It is an amenable number.

7775009532061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7775009532061 is an equidigital number, since it uses as much as digits as its factorization.

7775009532061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2778300, while the sum is 52.

The spelling of 7775009532061 in words is "seven trillion, seven hundred seventy-five billion, nine million, five hundred thirty-two thousand, sixty-one".