20627254361 has 4 divisors (see below), whose sum is σ = 23574004992. Its totient is φ = 17680503732.

The previous prime is 20627254303. The next prime is 20627254421. The reversal of 20627254361 is 16345272602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16345272602 = 2 ⋅8172636301.

It is a cyclic number.

It is not a de Polignac number, because 20627254361 - 2²² = 20623060057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20627251361) 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, 1473375305 + ... + 1473375318.

It is an arithmetic number, because the mean of its divisors is an integer number (5893501248).

Almost surely, 2^20627254361 is an apocalyptic number.

It is an amenable number.

20627254361 is a deficient number, since it is larger than the sum of its proper divisors (2946750631).

20627254361 is an equidigital number, since it uses as much as digits as its factorization.

20627254361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946750630.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 20627254361 in words is "twenty billion, six hundred twenty-seven million, two hundred fifty-four thousand, three hundred sixty-one".