67625052731 has 2 divisors, whose sum is σ = 67625052732. Its totient is φ = 67625052730.

The previous prime is 67625052619. The next prime is 67625052739. The reversal of 67625052731 is 13725052676.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67625052731 is a prime.

It is a super-2 number, since 2×67625052731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67625052739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33812526365 + 33812526366.

It is an arithmetic number, because the mean of its divisors is an integer number (33812526366).

Almost surely, 2^67625052731 is an apocalyptic number.

67625052731 is a deficient number, since it is larger than the sum of its proper divisors (1).

67625052731 is an equidigital number, since it uses as much as digits as its factorization.

67625052731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 67625052731 in words is "sixty-seven billion, six hundred twenty-five million, fifty-two thousand, seven hundred thirty-one".