40027954208729 has 8 divisors (see below), whose sum is σ = 40079718525000. Its totient is φ = 39976198278912.

The previous prime is 40027954208701. The next prime is 40027954208761. The reversal of 40027954208729 is 92780245972004.

It can be written as a sum of positive squares in 4 ways, for example, as 18113833921225 + 21914120287504 = 4256035^2 + 4681252^2 .

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-40027954208729 is a prime.

It is a super-2 number, since 2×40027954208729² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40027954208629) 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, 7483697 + ... + 11664545.

It is an arithmetic number, because the mean of its divisors is an integer number (5009964815625).

Almost surely, 2^{40027954208729} is an apocalyptic number.

It is an amenable number.

40027954208729 is a deficient number, since it is larger than the sum of its proper divisors (51764316271).

40027954208729 is a wasteful number, since it uses less digits than its factorization.

40027954208729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193227.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 40027954208729 in words is "forty trillion, twenty-seven billion, nine hundred fifty-four million, two hundred eight thousand, seven hundred twenty-nine".