11826078243 has 32 divisors (see below), whose sum is σ = 18234617856. Its totient is φ = 6677987328.

The previous prime is 11826078217. The next prime is 11826078259. The reversal of 11826078243 is 34287062811.

It is not a de Polignac number, because 11826078243 - 2¹⁶ = 11826012707 is a prime.

It is a super-2 number, since 2×11826078243² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11826078195 and 11826078204.

It is not an unprimeable number, because it can be changed into a prime (11826078263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632355 + ... + 650787.

It is an arithmetic number, because the mean of its divisors is an integer number (569831808).

Almost surely, 2^11826078243 is an apocalyptic number.

11826078243 is a deficient number, since it is larger than the sum of its proper divisors (6408539613).

11826078243 is a wasteful number, since it uses less digits than its factorization.

11826078243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18803.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 11826078243 in words is "eleven billion, eight hundred twenty-six million, seventy-eight thousand, two hundred forty-three".