2101782609407 has 8 divisors (see below), whose sum is σ = 2263473853536. Its totient is φ = 1940093602272.

The previous prime is 2101782609379. The next prime is 2101782609461. The reversal of 2101782609407 is 7049062871012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101782609407 - 2⁶ = 2101782609343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101782609607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743278 + ... + 2691204.

It is an arithmetic number, because the mean of its divisors is an integer number (282934231692).

Almost surely, 2^{2101782609407} is an apocalyptic number.

2101782609407 is a deficient number, since it is larger than the sum of its proper divisors (161691244129).

2101782609407 is a wasteful number, since it uses less digits than its factorization.

2101782609407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118497.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 2101782609407 in words is "two trillion, one hundred one billion, seven hundred eighty-two million, six hundred nine thousand, four hundred seven".