76865365133 has 12 divisors (see below), whose sum is σ = 79984694268. Its totient is φ = 73846906560.

The previous prime is 76865365081. The next prime is 76865365153. The reversal of 76865365133 is 33156356867.

It can be written as a sum of positive squares in 2 ways, for example, as 7589545924 + 69275819209 = 87118^2 + 263203^2 .

It is not a de Polignac number, because 76865365133 - 2⁶ = 76865365069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76865365153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227960 + ... + 453537.

It is an arithmetic number, because the mean of its divisors is an integer number (6665391189).

Almost surely, 2^76865365133 is an apocalyptic number.

It is an amenable number.

76865365133 is a deficient number, since it is larger than the sum of its proper divisors (3119329135).

76865365133 is an equidigital number, since it uses as much as digits as its factorization.

76865365133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681644 (or 681601 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 53.

The spelling of 76865365133 in words is "seventy-six billion, eight hundred sixty-five million, three hundred sixty-five thousand, one hundred thirty-three".