82139510051 has 2 divisors, whose sum is σ = 82139510052. Its totient is φ = 82139510050.

The previous prime is 82139510039. The next prime is 82139510059. The reversal of 82139510051 is 15001593128.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82139510051 is a prime.

It is a super-2 number, since 2×82139510051² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82139509993 and 82139510020.

It is not a weakly prime, because it can be changed into another prime (82139510059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41069755025 + 41069755026.

It is an arithmetic number, because the mean of its divisors is an integer number (41069755026).

Almost surely, 2^82139510051 is an apocalyptic number.

82139510051 is a deficient number, since it is larger than the sum of its proper divisors (1).

82139510051 is an equidigital number, since it uses as much as digits as its factorization.

82139510051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 35.

The spelling of 82139510051 in words is "eighty-two billion, one hundred thirty-nine million, five hundred ten thousand, fifty-one".