85987229429351 has 2 divisors, whose sum is σ = 85987229429352. Its totient is φ = 85987229429350.

The previous prime is 85987229429291. The next prime is 85987229429383. The reversal of 85987229429351 is 15392492278958.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85987229429351 is a prime.

It is a super-2 number, since 2×85987229429351² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85987229929351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42993614714675 + 42993614714676.

It is an arithmetic number, because the mean of its divisors is an integer number (42993614714676).

Almost surely, 2^{85987229429351} is an apocalyptic number.

85987229429351 is a deficient number, since it is larger than the sum of its proper divisors (1).

85987229429351 is an equidigital number, since it uses as much as digits as its factorization.

85987229429351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 783820800, while the sum is 74.

The spelling of 85987229429351 in words is "eighty-five trillion, nine hundred eighty-seven billion, two hundred twenty-nine million, four hundred twenty-nine thousand, three hundred fifty-one".