2516831478 has 48 divisors (see below), whose sum is σ = 6242745600. Its totient is φ = 717872688.

The previous prime is 2516831477. The next prime is 2516831479. The reversal of 2516831478 is 8741386152.

2516831478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2516831477) and next prime (2516831479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516831477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58801 + ... + 92147.

It is an arithmetic number, because the mean of its divisors is an integer number (130057200).

Almost surely, 2^2516831478 is an apocalyptic number.

2516831478 is an abundant number, since it is smaller than the sum of its proper divisors (3725914122).

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

2516831478 is a wasteful number, since it uses less digits than its factorization.

2516831478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33961 (or 33958 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 2516831478 is about 50168.0324310213. The cubic root of 2516831478 is about 1360.2478423024.

The spelling of 2516831478 in words is "two billion, five hundred sixteen million, eight hundred thirty-one thousand, four hundred seventy-eight".