378815587833 has 16 divisors (see below), whose sum is σ = 522526334400. Its totient is φ = 243825019200.

The previous prime is 378815587811. The next prime is 378815587849. The reversal of 378815587833 is 338785518873.

378815587833 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 378815587833 - 2⁶ = 378815587769 is a prime.

It is a super-2 number, since 2×378815587833² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378815587133) 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, 2349358 + ... + 2505416.

It is an arithmetic number, because the mean of its divisors is an integer number (32657895900).

Almost surely, 2^378815587833 is an apocalyptic number.

It is an amenable number.

378815587833 is a deficient number, since it is larger than the sum of its proper divisors (143710746567).

378815587833 is a wasteful number, since it uses less digits than its factorization.

378815587833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183992.

The product of its digits is 135475200, while the sum is 66.

The spelling of 378815587833 in words is "three hundred seventy-eight billion, eight hundred fifteen million, five hundred eighty-seven thousand, eight hundred thirty-three".