85890122051 has 2 divisors, whose sum is σ = 85890122052. Its totient is φ = 85890122050.

The previous prime is 85890121997. The next prime is 85890122077. The reversal of 85890122051 is 15022109858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85890122051 - 2⁶ = 85890121987 is a prime.

It is a super-2 number, since 2×85890122051² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85890122951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42945061025 + 42945061026.

It is an arithmetic number, because the mean of its divisors is an integer number (42945061026).

Almost surely, 2^85890122051 is an apocalyptic number.

85890122051 is a deficient number, since it is larger than the sum of its proper divisors (1).

85890122051 is an equidigital number, since it uses as much as digits as its factorization.

85890122051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 41.

The spelling of 85890122051 in words is "eighty-five billion, eight hundred ninety million, one hundred twenty-two thousand, fifty-one".