20427115802761 has 8 divisors (see below), whose sum is σ = 20435858967744. Its totient is φ = 20418374120880.

The previous prime is 20427115802729. The next prime is 20427115802771. The reversal of 20427115802761 is 16720851172402.

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

It is a cyclic number.

It is not a de Polignac number, because 20427115802761 - 2⁵ = 20427115802729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20427115802771) 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, 27632620 + ... + 28362226.

It is an arithmetic number, because the mean of its divisors is an integer number (2554482370968).

Almost surely, 2^{20427115802761} is an apocalyptic number.

It is an amenable number.

20427115802761 is a deficient number, since it is larger than the sum of its proper divisors (8743164983).

20427115802761 is an equidigital number, since it uses as much as digits as its factorization.

20427115802761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741551.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 20427115802761 in words is "twenty trillion, four hundred twenty-seven billion, one hundred fifteen million, eight hundred two thousand, seven hundred sixty-one".