172931650739 has 2 divisors, whose sum is σ = 172931650740. Its totient is φ = 172931650738.

The previous prime is 172931650711. The next prime is 172931650777. The reversal of 172931650739 is 937056139271.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172931650739 is a prime.

It is a super-2 number, since 2×172931650739² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172931650709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86465825369 + 86465825370.

It is an arithmetic number, because the mean of its divisors is an integer number (86465825370).

Almost surely, 2^172931650739 is an apocalyptic number.

172931650739 is a deficient number, since it is larger than the sum of its proper divisors (1).

172931650739 is an equidigital number, since it uses as much as digits as its factorization.

172931650739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2143260, while the sum is 53.

The spelling of 172931650739 in words is "one hundred seventy-two billion, nine hundred thirty-one million, six hundred fifty thousand, seven hundred thirty-nine".