4078861880831 has 4 divisors (see below), whose sum is σ = 4078866327600. Its totient is φ = 4078857434064.

The previous prime is 4078861880801. The next prime is 4078861880869. The reversal of 4078861880831 is 1380881688704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4078861880831 - 2¹⁴ = 4078861864447 is a prime.

It is a super-2 number, since 2×4078861880831² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078861880801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283046 + ... + 2870163.

It is an arithmetic number, because the mean of its divisors is an integer number (1019716581900).

Almost surely, 2^{4078861880831} is an apocalyptic number.

4078861880831 is a deficient number, since it is larger than the sum of its proper divisors (4446769).

4078861880831 is a wasteful number, since it uses less digits than its factorization.

4078861880831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446768.

The product of its (nonzero) digits is 16515072, while the sum is 62.

The spelling of 4078861880831 in words is "four trillion, seventy-eight billion, eight hundred sixty-one million, eight hundred eighty thousand, eight hundred thirty-one".