6141721457 has 4 divisors (see below), whose sum is σ = 6339841536. Its totient is φ = 5943601380.

The previous prime is 6141721387. The next prime is 6141721507. The reversal of 6141721457 is 7541271416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6141721457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6141721457.

It is not an unprimeable number, because it can be changed into a prime (6141721657) 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, 99059993 + ... + 99060054.

It is an arithmetic number, because the mean of its divisors is an integer number (1584960384).

Almost surely, 2^6141721457 is an apocalyptic number.

It is an amenable number.

6141721457 is a deficient number, since it is larger than the sum of its proper divisors (198120079).

6141721457 is a wasteful number, since it uses less digits than its factorization.

6141721457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198120078.

The product of its digits is 47040, while the sum is 38.

The square root of 6141721457 is about 78369.1358699329. The cubic root of 6141721457 is about 1831.3163468420.

The spelling of 6141721457 in words is "six billion, one hundred forty-one million, seven hundred twenty-one thousand, four hundred fifty-seven".