21467157622432 has 24 divisors (see below), whose sum is σ = 42311114276256. Its totient is φ = 10721477806272.

The previous prime is 21467157622321. The next prime is 21467157622441. The reversal of 21467157622432 is 23422675176412.

It is a self number, because there is not a number n which added to its sum of digits gives 21467157622432.

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, 378127578 + ... + 378184345.

It is an arithmetic number, because the mean of its divisors is an integer number (1762963094844).

Almost surely, 2^{21467157622432} is an apocalyptic number.

It is an amenable number.

21467157622432 is a deficient number, since it is larger than the sum of its proper divisors (20843956653824).

21467157622432 is an equidigital number, since it uses as much as digits as its factorization.

21467157622432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756312820 (or 756312812 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 52.

The spelling of 21467157622432 in words is "twenty-one trillion, four hundred sixty-seven billion, one hundred fifty-seven million, six hundred twenty-two thousand, four hundred thirty-two".