227040491645 has 16 divisors (see below), whose sum is σ = 297245168640. Its totient is φ = 165104510400.

The previous prime is 227040491641. The next prime is 227040491669. The reversal of 227040491645 is 546194040722.

It is not a de Polignac number, because 227040491645 - 2² = 227040491641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227040491596 and 227040491605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227040491641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396260 + ... + 781730.

It is an arithmetic number, because the mean of its divisors is an integer number (18577823040).

Almost surely, 2^227040491645 is an apocalyptic number.

It is an amenable number.

227040491645 is a deficient number, since it is larger than the sum of its proper divisors (70204676995).

227040491645 is a wasteful number, since it uses less digits than its factorization.

227040491645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396196.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 227040491645 in words is "two hundred twenty-seven billion, forty million, four hundred ninety-one thousand, six hundred forty-five".