1345312643642 has 16 divisors (see below), whose sum is σ = 2201439244032. Its totient is φ = 611500593120.

The previous prime is 1345312643641. The next prime is 1345312643651. The reversal of 1345312643642 is 2463462135431.

It is a super-3 number, since 3×1345312643642³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1345312643593 and 1345312643602.

It is not an unprimeable number, because it can be changed into a prime (1345312643641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3908918 + ... + 4239134.

It is an arithmetic number, because the mean of its divisors is an integer number (137589952752).

Almost surely, 2^{1345312643642} is an apocalyptic number.

1345312643642 is a deficient number, since it is larger than the sum of its proper divisors (856126600390).

1345312643642 is a wasteful number, since it uses less digits than its factorization.

1345312643642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515413.

The product of its digits is 1244160, while the sum is 44.

The spelling of 1345312643642 in words is "one trillion, three hundred forty-five billion, three hundred twelve million, six hundred forty-three thousand, six hundred forty-two".