4181722345476 has 243 divisors, whose sum is σ = 11898009641973. Its totient is φ = 1285358686560.

The previous prime is 4181722345469. The next prime is 4181722345481. The reversal of 4181722345476 is 6745432271814.

The square root of 4181722345476 is 2044926.

It is a perfect power (a square), and thus also a powerful number.

4181722345476 is a `hidden beast` number, since 4 + 1 + 8 + 1 + 72 + 23 + 4 + 547 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 618597980100 + 3563124365376 = 786510^2 + 1887624^2 .

It is a tau number, because it is divible by the number of its divisors (243).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4306613671 + ... + 4306614641.

Almost surely, 2^{4181722345476} is an apocalyptic number.

4181722345476 is the 2044926-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4181722345476

4181722345476 is an abundant number, since it is smaller than the sum of its proper divisors (7716287296497).

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

4181722345476 is an frugal number, since it uses more digits than its factorization.

4181722345476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 989 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 4181722345476 in words is "four trillion, one hundred eighty-one billion, seven hundred twenty-two million, three hundred forty-five thousand, four hundred seventy-six".