378386724869 has 16 divisors (see below), whose sum is σ = 391466974080. Its totient is φ = 365491491840.

The previous prime is 378386724853. The next prime is 378386724883. The reversal of 378386724869 is 968427683873.

It is a cyclic number.

It is not a de Polignac number, because 378386724869 - 2⁴ = 378386724853 is a prime.

It is a super-2 number, since 2×378386724869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378386724809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27945269 + ... + 27958805.

It is an arithmetic number, because the mean of its divisors is an integer number (24466685880).

Almost surely, 2^378386724869 is an apocalyptic number.

It is an amenable number.

378386724869 is a deficient number, since it is larger than the sum of its proper divisors (13080249211).

378386724869 is a wasteful number, since it uses less digits than its factorization.

378386724869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20300.

The product of its digits is 585252864, while the sum is 71.

The spelling of 378386724869 in words is "three hundred seventy-eight billion, three hundred eighty-six million, seven hundred twenty-four thousand, eight hundred sixty-nine".