20731672027 has 8 divisors (see below), whose sum is σ = 23806704960. Its totient is φ = 17855028360.

The previous prime is 20731671967. The next prime is 20731672043. The reversal of 20731672027 is 72027613702.

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-20731672027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20731672067) 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, 49597093 + ... + 49597510.

It is an arithmetic number, because the mean of its divisors is an integer number (2975838120).

Almost surely, 2^20731672027 is an apocalyptic number.

20731672027 is a deficient number, since it is larger than the sum of its proper divisors (3075032933).

20731672027 is a wasteful number, since it uses less digits than its factorization.

20731672027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99194633.

The product of its (nonzero) digits is 49392, while the sum is 37.

The spelling of 20731672027 in words is "twenty billion, seven hundred thirty-one million, six hundred seventy-two thousand, twenty-seven".