21214026552460 has 48 divisors (see below), whose sum is σ = 51067481552640. Its totient is φ = 7251406557120.

The previous prime is 21214026552427. The next prime is 21214026552493. The reversal of 21214026552460 is 6425562041212.

21214026552460 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (21214026552427) and next prime (21214026552493).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228849070 + ... + 228941749.

It is an arithmetic number, because the mean of its divisors is an integer number (1063905865680).

Almost surely, 2^{21214026552460} is an apocalyptic number.

21214026552460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21214026552460 is an abundant number, since it is smaller than the sum of its proper divisors (29853455000180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21214026552460 is a wasteful number, since it uses less digits than its factorization.

21214026552460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457791166 (or 457791164 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 21214026552460 its reverse (6425562041212), we get a palindrome (27639588593672).

The spelling of 21214026552460 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred fifty-two thousand, four hundred sixty".