1721010574040 has 64 divisors (see below), whose sum is σ = 4125208577760. Its totient is φ = 643934914560.

The previous prime is 1721010574009. The next prime is 1721010574069. The reversal of 1721010574040 is 404750101271.

It is a junction number, because it is equal to n+sod(n) for n = 1721010573988 and 1721010574006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7652651 + ... + 7874330.

Almost surely, 2^{1721010574040} is an apocalyptic number.

1721010574040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1721010574040 is an abundant number, since it is smaller than the sum of its proper divisors (2404198003720).

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

1721010574040 is a wasteful number, since it uses less digits than its factorization.

1721010574040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15527172 (or 15527168 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The spelling of 1721010574040 in words is "one trillion, seven hundred twenty-one billion, ten million, five hundred seventy-four thousand, forty".