26156950919 has 4 divisors (see below), whose sum is σ = 28534855560. Its totient is φ = 23779046280.

The previous prime is 26156950877. The next prime is 26156950973. The reversal of 26156950919 is 91905965162.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 26156950919 - 2²⁸ = 25888515463 is a prime.

It is a super-2 number, since 2×26156950919² (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 (26156950979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188952304 + ... + 1188952325.

It is an arithmetic number, because the mean of its divisors is an integer number (7133713890).

Almost surely, 2^26156950919 is an apocalyptic number.

26156950919 is a deficient number, since it is larger than the sum of its proper divisors (2377904641).

26156950919 is a wasteful number, since it uses less digits than its factorization.

26156950919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377904640.

The product of its (nonzero) digits is 1312200, while the sum is 53.

The spelling of 26156950919 in words is "twenty-six billion, one hundred fifty-six million, nine hundred fifty thousand, nine hundred nineteen".