87430446164 has 6 divisors (see below), whose sum is σ = 153003280794. Its totient is φ = 43715223080.

The previous prime is 87430446137. The next prime is 87430446223. The reversal of 87430446164 is 46164403478.

It can be written as a sum of positive squares in only one way, i.e., 80935698064 + 6494748100 = 284492^2 + 80590^2 .

It is a super-2 number, since 2×87430446164² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10928805767 + ... + 10928805774.

It is an arithmetic number, because the mean of its divisors is an integer number (25500546799).

Almost surely, 2^87430446164 is an apocalyptic number.

It is an amenable number.

87430446164 is a deficient number, since it is larger than the sum of its proper divisors (65572834630).

87430446164 is a wasteful number, since it uses less digits than its factorization.

87430446164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21857611545 (or 21857611543 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 87430446164 in words is "eighty-seven billion, four hundred thirty million, four hundred forty-six thousand, one hundred sixty-four".