6494261256 has 576 divisors, whose sum is σ = 23528232000. Its totient is φ = 1602478080.

The previous prime is 6494261183. The next prime is 6494261309. The reversal of 6494261256 is 6521624946.

It is a super-2 number, since 2×6494261256² = 84350858522365395072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 46721235 + ... + 46721373.

It is an arithmetic number, because the mean of its divisors is an integer number (40847625).

Almost surely, 2^6494261256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6494261256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11764116000).

6494261256 is an abundant number, since it is smaller than the sum of its proper divisors (17033970744).

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

6494261256 is a wasteful number, since it uses less digits than its factorization.

6494261256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 228 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 6494261256 is about 80586.9794445728. The cubic root of 6494261256 is about 1865.7061878223.

The spelling of 6494261256 in words is "six billion, four hundred ninety-four million, two hundred sixty-one thousand, two hundred fifty-six".