188369970342436 has 9 divisors (see below), whose sum is σ = 329647496136049. Its totient is φ = 94184971446424.

The previous prime is 188369970342413. The next prime is 188369970342497. The reversal of 188369970342436 is 634243079963881.

The square root of 188369970342436 is 13724794.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26298127548900 + 162071842793536 = 5128170^2 + 12730744^2 .

It is a super-2 number, since 2×188369970342436² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24018390 + ... + 30880786.

Almost surely, 2^{188369970342436} is an apocalyptic number.

188369970342436 is the 13724794-th square number.

It is an amenable number.

188369970342436 is a deficient number, since it is larger than the sum of its proper divisors (141277525793613).

188369970342436 is an frugal number, since it uses more digits than its factorization.

188369970342436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13724798 (or 6862399 counting only the distinct ones).

The product of its (nonzero) digits is 1128701952, while the sum is 73.

The spelling of 188369970342436 in words is "one hundred eighty-eight trillion, three hundred sixty-nine billion, nine hundred seventy million, three hundred forty-two thousand, four hundred thirty-six".