11478551043 has 16 divisors (see below), whose sum is σ = 15551294976. Its totient is φ = 7529518080.

The previous prime is 11478551041. The next prime is 11478551069. The reversal of 11478551043 is 34015587411.

It is a Cunningham number, because it is equal to 107138²-1.

It is not a de Polignac number, because 11478551043 - 2¹ = 11478551041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11478550992 and 11478551010.

It is not an unprimeable number, because it can be changed into a prime (11478551041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53571 + ... + 160707.

It is an arithmetic number, because the mean of its divisors is an integer number (971955936).

Almost surely, 2^11478551043 is an apocalyptic number.

11478551043 is a deficient number, since it is larger than the sum of its proper divisors (4072743933).

11478551043 is a wasteful number, since it uses less digits than its factorization.

11478551043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107714.

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 11478551043 in words is "eleven billion, four hundred seventy-eight million, five hundred fifty-one thousand, forty-three".