2729786117997 has 16 divisors (see below), whose sum is σ = 3765693199680. Its totient is φ = 1756883923200.

The previous prime is 2729786117987. The next prime is 2729786118043. The reversal of 2729786117997 is 7997116879272.

It is not a de Polignac number, because 2729786117997 - 2¹⁴ = 2729786101613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729786117987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261404 + ... + 2655317.

It is an arithmetic number, because the mean of its divisors is an integer number (235355824980).

Almost surely, 2^{2729786117997} is an apocalyptic number.

It is an amenable number.

2729786117997 is a deficient number, since it is larger than the sum of its proper divisors (1035907081683).

2729786117997 is a wasteful number, since it uses less digits than its factorization.

2729786117997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924764.

The product of its digits is 336063168, while the sum is 75.

It can be divided in two parts, 2729 and 786117997, that added together give a triangular number (786120726 = T₃₉₆₅₁).

The spelling of 2729786117997 in words is "two trillion, seven hundred twenty-nine billion, seven hundred eighty-six million, one hundred seventeen thousand, nine hundred ninety-seven".