1721250053740 has 48 divisors (see below), whose sum is σ = 4171901154624. Its totient is φ = 584299872000.

The previous prime is 1721250053717. The next prime is 1721250053753. The reversal of 1721250053740 is 473500521271.

It is a self number, because there is not a number n which added to its sum of digits gives 1721250053740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60850431 + ... + 60878710.

It is an arithmetic number, because the mean of its divisors is an integer number (86914607388).

Almost surely, 2^{1721250053740} is an apocalyptic number.

1721250053740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1721250053740 is an abundant number, since it is smaller than the sum of its proper divisors (2450651100884).

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

1721250053740 is a wasteful number, since it uses less digits than its factorization.

1721250053740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121729258 (or 121729256 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 1721250053740 in words is "one trillion, seven hundred twenty-one billion, two hundred fifty million, fifty-three thousand, seven hundred forty".