912409646420 has 24 divisors (see below), whose sum is σ = 1937589028200. Its totient is φ = 360863140352.

The previous prime is 912409646383. The next prime is 912409646437. The reversal of 912409646420 is 24646904219.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1614271684 + 910795374736 = 40178^2 + 954356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256293065 + ... + 256296624.

It is an arithmetic number, because the mean of its divisors is an integer number (80732876175).

Almost surely, 2^912409646420 is an apocalyptic number.

It is an amenable number.

912409646420 is an abundant number, since it is smaller than the sum of its proper divisors (1025179381780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

912409646420 is a wasteful number, since it uses less digits than its factorization.

912409646420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512589787 (or 512589785 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 912409646420 in words is "nine hundred twelve billion, four hundred nine million, six hundred forty-six thousand, four hundred twenty".