654532698377 has 2 divisors, whose sum is σ = 654532698378. Its totient is φ = 654532698376.

The previous prime is 654532698349. The next prime is 654532698383. The reversal of 654532698377 is 773896235456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647170371961 + 7362326416 = 804469^2 + 85804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654532698377 is a prime.

It is not a weakly prime, because it can be changed into another prime (654532698877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327266349188 + 327266349189.

It is an arithmetic number, because the mean of its divisors is an integer number (327266349189).

Almost surely, 2^654532698377 is an apocalyptic number.

It is an amenable number.

654532698377 is a deficient number, since it is larger than the sum of its proper divisors (1).

654532698377 is an equidigital number, since it uses as much as digits as its factorization.

654532698377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 65.

The spelling of 654532698377 in words is "six hundred fifty-four billion, five hundred thirty-two million, six hundred ninety-eight thousand, three hundred seventy-seven".