172616386951 has 2 divisors, whose sum is σ = 172616386952. Its totient is φ = 172616386950.

The previous prime is 172616386937. The next prime is 172616387051. The reversal of 172616386951 is 159683616271.

It is a weak prime.

It is an emirp because it is prime and its reverse (159683616271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172616386951 - 2⁷ = 172616386823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172616386892 and 172616386901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172616386651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86308193475 + 86308193476.

It is an arithmetic number, because the mean of its divisors is an integer number (86308193476).

Almost surely, 2^172616386951 is an apocalyptic number.

172616386951 is a deficient number, since it is larger than the sum of its proper divisors (1).

172616386951 is an equidigital number, since it uses as much as digits as its factorization.

172616386951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 55.

The spelling of 172616386951 in words is "one hundred seventy-two billion, six hundred sixteen million, three hundred eighty-six thousand, nine hundred fifty-one".