26190957191 has 8 divisors (see below), whose sum is σ = 30354107904. Its totient is φ = 22133202840.

The previous prime is 26190957181. The next prime is 26190957217. The reversal of 26190957191 is 19175909162.

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

It is not a de Polignac number, because 26190957191 - 2¹⁰ = 26190956167 is a prime.

It is a super-2 number, since 2×26190957191² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26190957101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26348555 + ... + 26349548.

It is an arithmetic number, because the mean of its divisors is an integer number (3794263488).

Almost surely, 2^26190957191 is an apocalyptic number.

26190957191 is a deficient number, since it is larger than the sum of its proper divisors (4163150713).

26190957191 is an equidigital number, since it uses as much as digits as its factorization.

26190957191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52698181.

The product of its (nonzero) digits is 306180, while the sum is 50.

The spelling of 26190957191 in words is "twenty-six billion, one hundred ninety million, nine hundred fifty-seven thousand, one hundred ninety-one".