21477503277411 has 16 divisors (see below), whose sum is σ = 28657152295968. Its totient is φ = 14308097126400.

The previous prime is 21477503277397. The next prime is 21477503277413. The reversal of 21477503277411 is 11477230577412.

It is not a de Polignac number, because 21477503277411 - 2⁷ = 21477503277283 is a prime.

It is a super-2 number, since 2×21477503277411² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21477503277413) 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, 38762355 + ... + 39312531.

It is an arithmetic number, because the mean of its divisors is an integer number (1791072018498).

Almost surely, 2^{21477503277411} is an apocalyptic number.

21477503277411 is a deficient number, since it is larger than the sum of its proper divisors (7179649018557).

21477503277411 is a wasteful number, since it uses less digits than its factorization.

21477503277411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559462.

The product of its (nonzero) digits is 2304960, while the sum is 51.

The spelling of 21477503277411 in words is "twenty-one trillion, four hundred seventy-seven billion, five hundred three million, two hundred seventy-seven thousand, four hundred eleven".