42769641646 has 8 divisors (see below), whose sum is σ = 65033290944. Its totient is φ = 21091878000.

The previous prime is 42769641643. The next prime is 42769641653. The reversal of 42769641646 is 64614696724.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42769641643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146471230 + ... + 146471521.

It is an arithmetic number, because the mean of its divisors is an integer number (8129161368).

Almost surely, 2^42769641646 is an apocalyptic number.

42769641646 is a deficient number, since it is larger than the sum of its proper divisors (22263649298).

42769641646 is a wasteful number, since it uses less digits than its factorization.

42769641646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292942826.

The product of its digits is 10450944, while the sum is 55.

The spelling of 42769641646 in words is "forty-two billion, seven hundred sixty-nine million, six hundred forty-one thousand, six hundred forty-six".