21527514473404 has 24 divisors (see below), whose sum is σ = 39319526564640. Its totient is φ = 10293564340224.

The previous prime is 21527514473401. The next prime is 21527514473419. The reversal of 21527514473404 is 40437441572512.

It is a super-3 number, since 3×21527514473404³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21527514473401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24606969 + ... + 25466800.

It is an arithmetic number, because the mean of its divisors is an integer number (1638313606860).

Almost surely, 2^{21527514473404} is an apocalyptic number.

It is an amenable number.

21527514473404 is a deficient number, since it is larger than the sum of its proper divisors (17792012091236).

21527514473404 is a wasteful number, since it uses less digits than its factorization.

21527514473404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50078469 (or 50078467 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 49.

The spelling of 21527514473404 in words is "twenty-one trillion, five hundred twenty-seven billion, five hundred fourteen million, four hundred seventy-three thousand, four hundred four".