2543713646 has 8 divisors (see below), whose sum is σ = 3815825544. Its totient is φ = 1271771800.

The previous prime is 2543713643. The next prime is 2543713657. The reversal of 2543713646 is 6463173452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2543713646² = 12940958225693226632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543713643) 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, 5921 + ... + 71571.

It is an arithmetic number, because the mean of its divisors is an integer number (476978193).

Almost surely, 2^2543713646 is an apocalyptic number.

2543713646 is a deficient number, since it is larger than the sum of its proper divisors (1272111898).

2543713646 is a wasteful number, since it uses less digits than its factorization.

2543713646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85026.

The product of its digits is 362880, while the sum is 41.

The square root of 2543713646 is about 50435.2421031167. The cubic root of 2543713646 is about 1365.0736176623.

The spelling of 2543713646 in words is "two billion, five hundred forty-three million, seven hundred thirteen thousand, six hundred forty-six".