105156426491 has 2 divisors, whose sum is σ = 105156426492. Its totient is φ = 105156426490.

The previous prime is 105156426469. The next prime is 105156426523. The reversal of 105156426491 is 194624651501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105156426491 - 2²² = 105152232187 is a prime.

It is a super-2 number, since 2×105156426491² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105116426491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52578213245 + 52578213246.

It is an arithmetic number, because the mean of its divisors is an integer number (52578213246).

Almost surely, 2^105156426491 is an apocalyptic number.

105156426491 is a deficient number, since it is larger than the sum of its proper divisors (1).

105156426491 is an equidigital number, since it uses as much as digits as its factorization.

105156426491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 105156426491 in words is "one hundred five billion, one hundred fifty-six million, four hundred twenty-six thousand, four hundred ninety-one".