1368930420169 has 9 divisors (see below), whose sum is σ = 1482349410549. Its totient is φ = 1263614040000.

The previous prime is 1368930420119. The next prime is 1368930420197. The reversal of 1368930420169 is 9610240398631.

It is a happy number.

The square root of 1368930420169 is 1170013.

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

It can be written as a sum of positive squares in 4 ways, for example, as 196067412025 + 1172863008144 = 442795^2 + 1082988^2 .

It is not a de Polignac number, because 1368930420169 - 2⁹ = 1368930419657 is a prime.

It is a super-2 number, since 2×1368930420169² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368930420119) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15165169 + ... + 15255169.

It is an arithmetic number, because the mean of its divisors is an integer number (164705490061).

Almost surely, 2^{1368930420169} is an apocalyptic number.

1368930420169 is the 1170013-rd square number.

1368930420169 is the 585007-th centered octagonal number.

It is an amenable number.

1368930420169 is a deficient number, since it is larger than the sum of its proper divisors (113418990380).

1368930420169 is an frugal number, since it uses more digits than its factorization.

1368930420169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180028 (or 90014 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 1368930420169 in words is "one trillion, three hundred sixty-eight billion, nine hundred thirty million, four hundred twenty thousand, one hundred sixty-nine".