764721424772153 has 2 divisors, whose sum is σ = 764721424772154. Its totient is φ = 764721424772152.

The previous prime is 764721424772143. The next prime is 764721424772161. The reversal of 764721424772153 is 351277424127467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606906727017529 + 157814697754624 = 24635477^2 + 12562432^2 .

It is a cyclic number.

It is not a de Polignac number, because 764721424772153 - 2³² = 764717129804857 is a prime.

It is not a weakly prime, because it can be changed into another prime (764721424772143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382360712386076 + 382360712386077.

It is an arithmetic number, because the mean of its divisors is an integer number (382360712386077).

Almost surely, 2^{764721424772153} is an apocalyptic number.

It is an amenable number.

764721424772153 is a deficient number, since it is larger than the sum of its proper divisors (1).

764721424772153 is an equidigital number, since it uses as much as digits as its factorization.

764721424772153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110638080, while the sum is 62.

The spelling of 764721424772153 in words is "seven hundred sixty-four trillion, seven hundred twenty-one billion, four hundred twenty-four million, seven hundred seventy-two thousand, one hundred fifty-three".