42769655691 has 32 divisors (see below), whose sum is σ = 65497141248. Its totient is φ = 24318351360.

The previous prime is 42769655657. The next prime is 42769655693. The reversal of 42769655691 is 19655696724.

It is not a de Polignac number, because 42769655691 - 2⁶ = 42769655627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42769655693) 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 31 ways as a sum of consecutive naturals, for example, 7927891 + ... + 7933283.

It is an arithmetic number, because the mean of its divisors is an integer number (2046785664).

Almost surely, 2^42769655691 is an apocalyptic number.

42769655691 is a deficient number, since it is larger than the sum of its proper divisors (22727485557).

42769655691 is a wasteful number, since it uses less digits than its factorization.

42769655691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211.

The product of its digits is 24494400, while the sum is 60.

The spelling of 42769655691 in words is "forty-two billion, seven hundred sixty-nine million, six hundred fifty-five thousand, six hundred ninety-one".