2378267243945 has 16 divisors (see below), whose sum is σ = 2924216990352. Its totient is φ = 1855771453440.

The previous prime is 2378267243939. The next prime is 2378267244013. The reversal of 2378267243945 is 5493427628732.

It can be written as a sum of positive squares in 8 ways, for example, as 395285066089 + 1982982177856 = 628717^2 + 1408184^2 .

It is not a de Polignac number, because 2378267243945 - 2¹⁴ = 2378267227561 is a prime.

It is a super-2 number, since 2×2378267243945² (a number of 26 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 15 ways as a sum of consecutive naturals, for example, 492032 + ... + 2235761.

It is an arithmetic number, because the mean of its divisors is an integer number (182763561897).

Almost surely, 2^{2378267243945} is an apocalyptic number.

It is an amenable number.

2378267243945 is a deficient number, since it is larger than the sum of its proper divisors (545949746407).

2378267243945 is a wasteful number, since it uses less digits than its factorization.

2378267243945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732092.

The product of its digits is 121927680, while the sum is 62.

The spelling of 2378267243945 in words is "two trillion, three hundred seventy-eight billion, two hundred sixty-seven million, two hundred forty-three thousand, nine hundred forty-five".