6144204781 has 16 divisors (see below), whose sum is σ = 7598283840. Its totient is φ = 4884606720.

The previous prime is 6144204757. The next prime is 6144204791. The reversal of 6144204781 is 1874024416.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6144204781 - 2²⁹ = 5607333869 is a prime.

It is a super-2 number, since 2×6144204781² = 75502504781726515922, which contains 22 as substring.

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 6144204781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6144204721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1127980 + ... + 1133413.

It is an arithmetic number, because the mean of its divisors is an integer number (474892740).

Almost surely, 2^6144204781 is an apocalyptic number.

It is an amenable number.

6144204781 is a deficient number, since it is larger than the sum of its proper divisors (1454079059).

6144204781 is a wasteful number, since it uses less digits than its factorization.

6144204781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261436.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 6144204781 is about 78384.9780315081. The cubic root of 6144204781 is about 1831.5631364467.

It can be divided in two parts, 6144 and 204781, that added together give a triangular number (210925 = T₆₄₉).

The spelling of 6144204781 in words is "six billion, one hundred forty-four million, two hundred four thousand, seven hundred eighty-one".