1722047121342 has 24 divisors (see below), whose sum is σ = 3927475891560. Its totient is φ = 543804354000.

The previous prime is 1722047121331. The next prime is 1722047121469. The reversal of 1722047121342 is 2431217402271.

1722047121342 is a `hidden beast` number, since 1 + 7 + 220 + 4 + 71 + 21 + 342 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1722047121297 and 1722047121306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2517612409 + ... + 2517613092.

It is an arithmetic number, because the mean of its divisors is an integer number (163644828815).

Almost surely, 2^{1722047121342} is an apocalyptic number.

1722047121342 is an abundant number, since it is smaller than the sum of its proper divisors (2205428770218).

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

1722047121342 is a wasteful number, since it uses less digits than its factorization.

1722047121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035225528 (or 5035225525 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 1722047121342 in words is "one trillion, seven hundred twenty-two billion, forty-seven million, one hundred twenty-one thousand, three hundred forty-two".