6012679781 has 8 divisors (see below), whose sum is σ = 6124887000. Its totient is φ = 5900912640.

The previous prime is 6012679753. The next prime is 6012679861. The reversal of 6012679781 is 1879762106.

It can be written as a sum of positive squares in 4 ways, for example, as 4879681 + 6007800100 = 2209^2 + 77510^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6012679781 is a prime.

It is a super-2 number, since 2×6012679781² = 72304636297692415922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6012679081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82376 + ... + 137153.

It is an arithmetic number, because the mean of its divisors is an integer number (765610875).

Almost surely, 2^6012679781 is an apocalyptic number.

6012679781 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6012679781 is a deficient number, since it is larger than the sum of its proper divisors (112207219).

6012679781 is a wasteful number, since it uses less digits than its factorization.

6012679781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220039.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 6012679781 is about 77541.4713621040. The cubic root of 6012679781 is about 1818.3997305871.

The spelling of 6012679781 in words is "six billion, twelve million, six hundred seventy-nine thousand, seven hundred eighty-one".