42476538091 has 16 divisors (see below), whose sum is σ = 46990295968. Its totient is φ = 38141280000.

The previous prime is 42476538089. The next prime is 42476538107. The reversal of 42476538091 is 19083567424.

It is a happy number.

It is a 8-Lehmer number, since φ(42476538091) divides (42476538091-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 42476538091 - 2¹ = 42476538089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42476538001) 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 15 ways as a sum of consecutive naturals, for example, 4324576 + ... + 4334386.

It is an arithmetic number, because the mean of its divisors is an integer number (2936893498).

It is a 2-persistent number, because it is pandigital, and so is 2⋅42476538091 = 84953076182, but 3⋅42476538091 = 127429614273 is not.

Almost surely, 2^42476538091 is an apocalyptic number.

42476538091 is a deficient number, since it is larger than the sum of its proper divisors (4513757877).

42476538091 is a wasteful number, since it uses less digits than its factorization.

42476538091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18862.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 42476538091 in words is "forty-two billion, four hundred seventy-six million, five hundred thirty-eight thousand, ninety-one".