7744060538681 has 8 divisors (see below), whose sum is σ = 7785616164480. Its totient is φ = 7702527596848.

The previous prime is 7744060538657. The next prime is 7744060538689. The reversal of 7744060538681 is 1868350604477.

It is a happy number.

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-7744060538681 is a prime.

It is a super-2 number, since 2×7744060538681² (a number of 27 digits) 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 7744060538681.

It is not an unprimeable number, because it can be changed into a prime (7744060538689) 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, 4986161 + ... + 6352158.

It is an arithmetic number, because the mean of its divisors is an integer number (973202020560).

Almost surely, 2^{7744060538681} is an apocalyptic number.

It is an amenable number.

7744060538681 is a deficient number, since it is larger than the sum of its proper divisors (41555625799).

7744060538681 is a wasteful number, since it uses less digits than its factorization.

7744060538681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11341983.

The product of its (nonzero) digits is 27095040, while the sum is 59.

The spelling of 7744060538681 in words is "seven trillion, seven hundred forty-four billion, sixty million, five hundred thirty-eight thousand, six hundred eighty-one".