16791682648749 has 32 divisors (see below), whose sum is σ = 23285922938880. Its totient is φ = 10753798220352.

The previous prime is 16791682648733. The next prime is 16791682648781. The reversal of 16791682648749 is 94784628619761.

It is not a de Polignac number, because 16791682648749 - 2⁴ = 16791682648733 is a prime.

It is a super-2 number, since 2×16791682648749² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16791684648749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13855212 + ... + 15018330.

It is an arithmetic number, because the mean of its divisors is an integer number (727685091840).

Almost surely, 2^{16791682648749} is an apocalyptic number.

It is an amenable number.

16791682648749 is a deficient number, since it is larger than the sum of its proper divisors (6494240290131).

16791682648749 is a wasteful number, since it uses less digits than its factorization.

16791682648749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164809.

The product of its digits is 1755758592, while the sum is 78.

The spelling of 16791682648749 in words is "sixteen trillion, seven hundred ninety-one billion, six hundred eighty-two million, six hundred forty-eight thousand, seven hundred forty-nine".