1345946158378 has 8 divisors (see below), whose sum is σ = 2137679192772. Its totient is φ = 633386427456.

The previous prime is 1345946158351. The next prime is 1345946158391. The reversal of 1345946158378 is 8738516495431.

It can be written as a sum of positive squares in 2 ways, for example, as 1280715465969 + 65230692409 = 1131687^2 + 255403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1345946158378² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19793325825 + ... + 19793325892.

Almost surely, 2^{1345946158378} is an apocalyptic number.

1345946158378 is a deficient number, since it is larger than the sum of its proper divisors (791733034394).

1345946158378 is a wasteful number, since it uses less digits than its factorization.

1345946158378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39586651736.

The product of its digits is 87091200, while the sum is 64.

The spelling of 1345946158378 in words is "one trillion, three hundred forty-five billion, nine hundred forty-six million, one hundred fifty-eight thousand, three hundred seventy-eight".