2539966464 has 416 divisors, whose sum is σ = 9152951040. Its totient is φ = 679477248.

The previous prime is 2539966463. The next prime is 2539966469. The reversal of 2539966464 is 4646699352.

2539966464 is a `hidden beast` number, since 2 + 539 + 9 + 66 + 46 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2539966464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539966463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13160352 + ... + 13160544.

Almost surely, 2^2539966464 is an apocalyptic number.

2539966464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2539966464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4576475520).

2539966464 is an abundant number, since it is smaller than the sum of its proper divisors (6612984576).

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

2539966464 is a wasteful number, since it uses less digits than its factorization.

2539966464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 222 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The square root of 2539966464 is about 50398.0799634272. The cubic root of 2539966464 is about 1364.4029849042.

The spelling of 2539966464 in words is "two billion, five hundred thirty-nine million, nine hundred sixty-six thousand, four hundred sixty-four".