946455789780 has 240 divisors, whose sum is σ = 3129637896000. Its totient is φ = 238775330304.

The previous prime is 946455789757. The next prime is 946455789823. The reversal of 946455789780 is 87987554649.

946455789780 is a `hidden beast` number, since 9 + 4 + 6 + 45 + 578 + 9 + 7 + 8 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 946455789699 and 946455789708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 22725616 + ... + 22767224.

It is an arithmetic number, because the mean of its divisors is an integer number (13040157900).

Almost surely, 2^946455789780 is an apocalyptic number.

946455789780 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 946455789780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564818948000).

946455789780 is an abundant number, since it is smaller than the sum of its proper divisors (2183182106220).

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

946455789780 is a wasteful number, since it uses less digits than its factorization.

946455789780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42388 (or 42377 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 72.

The spelling of 946455789780 in words is "nine hundred forty-six billion, four hundred fifty-five million, seven hundred eighty-nine thousand, seven hundred eighty".