2421452231172 has 72 divisors (see below), whose sum is σ = 6592394128320. Its totient is φ = 744987280320.

The previous prime is 2421452231167. The next prime is 2421452231173. The reversal of 2421452231172 is 2711322541242.

2421452231172 is a `hidden beast` number, since 2 + 4 + 2 + 1 + 452 + 2 + 31 + 172 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2421452231173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4489897 + ... + 5000207.

It is an arithmetic number, because the mean of its divisors is an integer number (91561029560).

Almost surely, 2^{2421452231172} is an apocalyptic number.

It is an amenable number.

2421452231172 is an abundant number, since it is smaller than the sum of its proper divisors (4170941897148).

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

2421452231172 is a wasteful number, since it uses less digits than its factorization.

2421452231172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520473 (or 520468 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The spelling of 2421452231172 in words is "two trillion, four hundred twenty-one billion, four hundred fifty-two million, two hundred thirty-one thousand, one hundred seventy-two".