1721477270040 has 128 divisors (see below), whose sum is σ = 5815665285120. Its totient is φ = 403865625600.

The previous prime is 1721477270027. The next prime is 1721477270063. The reversal of 1721477270040 is 400727741271.

It is a super-3 number, since 3×1721477270040³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1721477269974 and 1721477270001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20993749 + ... + 21075588.

It is an arithmetic number, because the mean of its divisors is an integer number (45434885040).

Almost surely, 2^{1721477270040} is an apocalyptic number.

1721477270040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1721477270040 is an abundant number, since it is smaller than the sum of its proper divisors (4094188015080).

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

1721477270040 is a wasteful number, since it uses less digits than its factorization.

1721477270040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42069393 (or 42069389 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 42.

The spelling of 1721477270040 in words is "one trillion, seven hundred twenty-one billion, four hundred seventy-seven million, two hundred seventy thousand, forty".