11427907155 has 24 divisors (see below), whose sum is σ = 21269902032. Its totient is φ = 5224185792.

The previous prime is 11427907147. The next prime is 11427907159. The reversal of 11427907155 is 55170972411.

It is not a de Polignac number, because 11427907155 - 2³ = 11427907147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11427907159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7773352 + ... + 7774821.

It is an arithmetic number, because the mean of its divisors is an integer number (886245918).

Almost surely, 2^11427907155 is an apocalyptic number.

11427907155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11427907155 is a deficient number, since it is larger than the sum of its proper divisors (9841994877).

11427907155 is a wasteful number, since it uses less digits than its factorization.

11427907155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15548195 (or 15548188 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 42.

The spelling of 11427907155 in words is "eleven billion, four hundred twenty-seven million, nine hundred seven thousand, one hundred fifty-five".