764525136162061 has 2 divisors, whose sum is σ = 764525136162062. Its totient is φ = 764525136162060.

The previous prime is 764525136162023. The next prime is 764525136162107. The reversal of 764525136162061 is 160261631525467.

764525136162061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451444315233961 + 313080820928100 = 21247219^2 + 17694090^2 .

It is a cyclic number.

It is not a de Polignac number, because 764525136162061 - 2²⁹ = 764524599291149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 764525136161993 and 764525136162011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764525536162061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382262568081030 + 382262568081031.

It is an arithmetic number, because the mean of its divisors is an integer number (382262568081031).

Almost surely, 2^{764525136162061} is an apocalyptic number.

It is an amenable number.

764525136162061 is a deficient number, since it is larger than the sum of its proper divisors (1).

764525136162061 is an equidigital number, since it uses as much as digits as its factorization.

764525136162061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 764525136162061 in words is "seven hundred sixty-four trillion, five hundred twenty-five billion, one hundred thirty-six million, one hundred sixty-two thousand, sixty-one".