946921301820 has 144 divisors (see below), whose sum is σ = 3112254661152. Its totient is φ = 231658237440.

The previous prime is 946921301813. The next prime is 946921301897. The reversal of 946921301820 is 28103129649.

946921301820 is a `hidden beast` number, since 9 + 469 + 2 + 1 + 3 + 0 + 182 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 859891 + ... + 1622730.

Almost surely, 2^946921301820 is an apocalyptic number.

946921301820 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

946921301820 is an abundant number, since it is smaller than the sum of its proper divisors (2165333359332).

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

946921301820 is a wasteful number, since it uses less digits than its factorization.

946921301820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482812 (or 2482807 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 946921301820 in words is "nine hundred forty-six billion, nine hundred twenty-one million, three hundred one thousand, eight hundred twenty".