21754364034050 has 12 divisors (see below), whose sum is σ = 40463117103426. Its totient is φ = 8701745613600.

The previous prime is 21754364034019. The next prime is 21754364034131. The reversal of 21754364034050 is 5043046345712.

It can be written as a sum of positive squares in 3 ways, for example, as 16676466844489 + 5077897189561 = 4083683^2 + 2253419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21754364033992 and 21754364034010.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217543640291 + ... + 217543640390.

Almost surely, 2^{21754364034050} is an apocalyptic number.

21754364034050 is a deficient number, since it is larger than the sum of its proper divisors (18708753069376).

21754364034050 is a wasteful number, since it uses less digits than its factorization.

21754364034050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435087280693 (or 435087280688 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 21754364034050 in words is "twenty-one trillion, seven hundred fifty-four billion, three hundred sixty-four million, thirty-four thousand, fifty".