27401851721756 has 12 divisors (see below), whose sum is σ = 47968128222840. Its totient is φ = 13696672229520.

The previous prime is 27401851721753. The next prime is 27401851721813. The reversal of 27401851721756 is 65712715810472.

It is a super-2 number, since 2×27401851721756² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27401851721753) 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, 1063393346 + ... + 1063419113.

It is an arithmetic number, because the mean of its divisors is an integer number (3997344018570).

Almost surely, 2^{27401851721756} is an apocalyptic number.

It is an amenable number.

27401851721756 is a deficient number, since it is larger than the sum of its proper divisors (20566276501084).

27401851721756 is a wasteful number, since it uses less digits than its factorization.

27401851721756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126815684 (or 2126815682 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 56.

The spelling of 27401851721756 in words is "twenty-seven trillion, four hundred one billion, eight hundred fifty-one million, seven hundred twenty-one thousand, seven hundred fifty-six".