67477652251 has 2 divisors, whose sum is σ = 67477652252. Its totient is φ = 67477652250.

The previous prime is 67477652189. The next prime is 67477652269. The reversal of 67477652251 is 15225677476.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67477652251 is a prime.

It is not a weakly prime, because it can be changed into another prime (67477655251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33738826125 + 33738826126.

It is an arithmetic number, because the mean of its divisors is an integer number (33738826126).

Almost surely, 2^67477652251 is an apocalyptic number.

67477652251 is a deficient number, since it is larger than the sum of its proper divisors (1).

67477652251 is an equidigital number, since it uses as much as digits as its factorization.

67477652251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4939200, while the sum is 52.

The spelling of 67477652251 in words is "sixty-seven billion, four hundred seventy-seven million, six hundred fifty-two thousand, two hundred fifty-one".