2546571648 has 32 divisors (see below), whose sum is σ = 6764331960. Its totient is φ = 848857088.

The previous prime is 2546571637. The next prime is 2546571659. The reversal of 2546571648 is 8461756452.

It is an interprime number because it is at equal distance from previous prime (2546571637) and next prime (2546571659).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 2546571597 and 2546571606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3315465 + ... + 3316232.

Almost surely, 2^2546571648 is an apocalyptic number.

It is an amenable number.

2546571648 is an abundant number, since it is smaller than the sum of its proper divisors (4217760312).

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

2546571648 is an equidigital number, since it uses as much as digits as its factorization.

2546571648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631714 (or 6631702 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The square root of 2546571648 is about 50463.5675314380. The cubic root of 2546571648 is about 1365.5846713741.

The spelling of 2546571648 in words is "two billion, five hundred forty-six million, five hundred seventy-one thousand, six hundred forty-eight".