6742161956785 has 8 divisors (see below), whose sum is σ = 8090726094720. Its totient is φ = 5393641734384.

The previous prime is 6742161956743. The next prime is 6742161956807. The reversal of 6742161956785 is 5876591612476.

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 6742161956785 - 2⁹ = 6742161956273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6742161956785.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10640175 + ... + 11256004.

It is an arithmetic number, because the mean of its divisors is an integer number (1011340761840).

Almost surely, 2^{6742161956785} is an apocalyptic number.

It is an amenable number.

6742161956785 is a deficient number, since it is larger than the sum of its proper divisors (1348564137935).

6742161956785 is a wasteful number, since it uses less digits than its factorization.

6742161956785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21957767.

The product of its digits is 152409600, while the sum is 67.

The spelling of 6742161956785 in words is "six trillion, seven hundred forty-two billion, one hundred sixty-one million, nine hundred fifty-six thousand, seven hundred eighty-five".