21476140011 has 24 divisors (see below), whose sum is σ = 32227366080. Its totient is φ = 14291905032.

The previous prime is 21476139977. The next prime is 21476140033. The reversal of 21476140011 is 11004167412.

21476140011 is a `hidden beast` number, since 2 + 1 + 47 + 614 + 0 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 21476140011 - 2¹³ = 21476131819 is a prime.

It is a super-2 number, since 2×21476140011² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21476140051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58320 + ... + 215298.

It is an arithmetic number, because the mean of its divisors is an integer number (1342806920).

Almost surely, 2^21476140011 is an apocalyptic number.

21476140011 is a deficient number, since it is larger than the sum of its proper divisors (10751226069).

21476140011 is an equidigital number, since it uses as much as digits as its factorization.

21476140011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157557 (or 157545 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The spelling of 21476140011 in words is "twenty-one billion, four hundred seventy-six million, one hundred forty thousand, eleven".