2683431155478 has 32 divisors (see below), whose sum is σ = 5540754557952. Its totient is φ = 865503007200.

The previous prime is 2683431155473. The next prime is 2683431155491. The reversal of 2683431155478 is 8745511343862.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2683431155473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351268 + ... + 2343128.

It is an arithmetic number, because the mean of its divisors is an integer number (173148579936).

Almost surely, 2^{2683431155478} is an apocalyptic number.

2683431155478 is an abundant number, since it is smaller than the sum of its proper divisors (2857323402474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2683431155478 is a wasteful number, since it uses less digits than its factorization.

2683431155478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999140.

The product of its digits is 19353600, while the sum is 57.

The spelling of 2683431155478 in words is "two trillion, six hundred eighty-three billion, four hundred thirty-one million, one hundred fifty-five thousand, four hundred seventy-eight".