6771257442 has 24 divisors (see below), whose sum is σ = 14676654720. Its totient is φ = 2256224760.

The previous prime is 6771257417. The next prime is 6771257459. The reversal of 6771257442 is 2447521776.

6771257442 is a `hidden beast` number, since 6 + 7 + 71 + 2 + 574 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22342 + ... + 118497.

It is an arithmetic number, because the mean of its divisors is an integer number (611527280).

Almost surely, 2^6771257442 is an apocalyptic number.

6771257442 is an abundant number, since it is smaller than the sum of its proper divisors (7905397278).

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

6771257442 is a wasteful number, since it uses less digits than its factorization.

6771257442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143518 (or 143515 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 6771257442 is about 82287.6506044498. The cubic root of 6771257442 is about 1891.8633994783.

The spelling of 6771257442 in words is "six billion, seven hundred seventy-one million, two hundred fifty-seven thousand, four hundred forty-two".