42151260091 has 2 divisors, whose sum is σ = 42151260092. Its totient is φ = 42151260090.

The previous prime is 42151260089. The next prime is 42151260149. The reversal of 42151260091 is 19006215124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42151260091 - 2¹ = 42151260089 is a prime.

Together with 42151260089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42151261091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21075630045 + 21075630046.

It is an arithmetic number, because the mean of its divisors is an integer number (21075630046).

Almost surely, 2^42151260091 is an apocalyptic number.

42151260091 is a deficient number, since it is larger than the sum of its proper divisors (1).

42151260091 is an equidigital number, since it uses as much as digits as its factorization.

42151260091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 42151260091 in words is "forty-two billion, one hundred fifty-one million, two hundred sixty thousand, ninety-one".