21038111762673 has 8 divisors (see below), whose sum is σ = 28050840291136. Its totient is φ = 14025395538000.

The previous prime is 21038111762669. The next prime is 21038111762761. The reversal of 21038111762673 is 37626711183012.

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

It is not a de Polignac number, because 21038111762673 - 2² = 21038111762669 is a prime.

It is a super-2 number, since 2×21038111762673² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21038111762653) 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, 2212908 + ... + 6853698.

It is an arithmetic number, because the mean of its divisors is an integer number (3506355036392).

Almost surely, 2^{21038111762673} is an apocalyptic number.

It is an amenable number.

21038111762673 is a deficient number, since it is larger than the sum of its proper divisors (7012728528463).

21038111762673 is a wasteful number, since it uses less digits than its factorization.

21038111762673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6151895.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 21038111762673 in words is "twenty-one trillion, thirty-eight billion, one hundred eleven million, seven hundred sixty-two thousand, six hundred seventy-three".