181401051468 has 96 divisors (see below), whose sum is σ = 521293441536. Its totient is φ = 47810184192.

The previous prime is 181401051463. The next prime is 181401051473. The reversal of 181401051468 is 864150104181.

It is an interprime number because it is at equal distance from previous prime (181401051463) and next prime (181401051473).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (181401051463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1608580 + ... + 1717652.

It is an arithmetic number, because the mean of its divisors is an integer number (5430140016).

Almost surely, 2^181401051468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181401051468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260646720768).

181401051468 is an abundant number, since it is smaller than the sum of its proper divisors (339892390068).

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

181401051468 is a wasteful number, since it uses less digits than its factorization.

181401051468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110623 (or 110621 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The spelling of 181401051468 in words is "one hundred eighty-one billion, four hundred one million, fifty-one thousand, four hundred sixty-eight".