84923804137 has 2 divisors, whose sum is σ = 84923804138. Its totient is φ = 84923804136.

The previous prime is 84923804071. The next prime is 84923804179. The reversal of 84923804137 is 73140832948.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70761852121 + 14161952016 = 266011^2 + 119004^2 .

It is a cyclic number.

It is not a de Polignac number, because 84923804137 - 2³¹ = 82776320489 is a prime.

It is not a weakly prime, because it can be changed into another prime (84923504137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42461902068 + 42461902069.

It is an arithmetic number, because the mean of its divisors is an integer number (42461902069).

Almost surely, 2^84923804137 is an apocalyptic number.

It is an amenable number.

84923804137 is a deficient number, since it is larger than the sum of its proper divisors (1).

84923804137 is an equidigital number, since it uses as much as digits as its factorization.

84923804137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 84923804137 in words is "eighty-four billion, nine hundred twenty-three million, eight hundred four thousand, one hundred thirty-seven".