4661771994880 has 864 divisors, whose sum is σ = 15165192051072. Its totient is φ = 1336022138880.

The previous prime is 4661771994871. The next prime is 4661771994899. The reversal of 4661771994880 is 884991771664.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4975209772 + ... + 4975210708.

Almost surely, 2^{4661771994880} is an apocalyptic number.

4661771994880 is a gapful number since it is divisible by the number (40) 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 4661771994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7582596025536).

4661771994880 is an abundant number, since it is smaller than the sum of its proper divisors (10503420056192).

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

4661771994880 is a wasteful number, since it uses less digits than its factorization.

4661771994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 70.

The spelling of 4661771994880 in words is "four trillion, six hundred sixty-one billion, seven hundred seventy-one million, nine hundred ninety-four thousand, eight hundred eighty".