887874397719161 has 2 divisors, whose sum is σ = 887874397719162. Its totient is φ = 887874397719160.

The previous prime is 887874397719109. The next prime is 887874397719187. The reversal of 887874397719161 is 161917793478788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 681474627494761 + 206399770224400 = 26105069^2 + 14366620^2 .

It is a cyclic number.

It is not a de Polignac number, because 887874397719161 - 2¹⁸ = 887874397457017 is a prime.

It is a super-2 number, since 2×887874397719161² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (887874397119161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443937198859580 + 443937198859581.

It is an arithmetic number, because the mean of its divisors is an integer number (443937198859581).

Almost surely, 2^{887874397719161} is an apocalyptic number.

It is an amenable number.

887874397719161 is a deficient number, since it is larger than the sum of its proper divisors (1).

887874397719161 is an equidigital number, since it uses as much as digits as its factorization.

887874397719161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7169347584, while the sum is 86.

The spelling of 887874397719161 in words is "eight hundred eighty-seven trillion, eight hundred seventy-four billion, three hundred ninety-seven million, seven hundred nineteen thousand, one hundred sixty-one".