900123811647 has 8 divisors (see below), whose sum is σ = 1212047905200. Its totient is φ = 594141129600.

The previous prime is 900123811603. The next prime is 900123811651. The reversal of 900123811647 is 746118321009.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-900123811647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 900123811599 and 900123811608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900123813647) 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, 1485352522 + ... + 1485353127.

It is an arithmetic number, because the mean of its divisors is an integer number (151505988150).

Almost surely, 2^900123811647 is an apocalyptic number.

900123811647 is a deficient number, since it is larger than the sum of its proper divisors (311924093553).

900123811647 is a wasteful number, since it uses less digits than its factorization.

900123811647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970705753.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 900123811647 in words is "nine hundred billion, one hundred twenty-three million, eight hundred eleven thousand, six hundred forty-seven".