2401818273972 has 144 divisors (see below), whose sum is σ = 6673352894208. Its totient is φ = 723803109120.

The previous prime is 2401818273961. The next prime is 2401818273979. The reversal of 2401818273972 is 2793728181042.

2401818273972 is a `hidden beast` number, since 2 + 401 + 8 + 1 + 82 + 73 + 97 + 2 = 666.

2401818273972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2401818273979) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14078293 + ... + 14247875.

It is an arithmetic number, because the mean of its divisors is an integer number (46342728432).

Almost surely, 2^{2401818273972} 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 2401818273972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3336676447104).

2401818273972 is an abundant number, since it is smaller than the sum of its proper divisors (4271534620236).

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

2401818273972 is a wasteful number, since it uses less digits than its factorization.

2401818273972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170230 (or 170225 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 2401818273972 in words is "two trillion, four hundred one billion, eight hundred eighteen million, two hundred seventy-three thousand, nine hundred seventy-two".