21436063412 has 12 divisors (see below), whose sum is σ = 37514654016. Its totient is φ = 10717590840.

The previous prime is 21436063409. The next prime is 21436063421.

21436063412 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×21436063412³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14987 + ... + 207597.

It is an arithmetic number, because the mean of its divisors is an integer number (3126221168).

Almost surely, 2^21436063412 is an apocalyptic number.

It is an amenable number.

21436063412 is a deficient number, since it is larger than the sum of its proper divisors (16078590604).

21436063412 is a wasteful number, since it uses less digits than its factorization.

21436063412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220438 (or 220436 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

It can be divided in two parts, 214360 and 63412, that added together give a palindrome (277772).

The spelling of 21436063412 in words is "twenty-one billion, four hundred thirty-six million, sixty-three thousand, four hundred twelve".