21035427474 has 32 divisors (see below), whose sum is σ = 42877797120. Its totient is φ = 6877400192.

The previous prime is 21035427473. The next prime is 21035427533. The reversal of 21035427474 is 47472453012.

It is not an unprimeable number, because it can be changed into a prime (21035427473) 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, 1289014 + ... + 1305230.

It is an arithmetic number, because the mean of its divisors is an integer number (1339931160).

Almost surely, 2^21035427474 is an apocalyptic number.

21035427474 is an abundant number, since it is smaller than the sum of its proper divisors (21842369646).

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

21035427474 is a wasteful number, since it uses less digits than its factorization.

21035427474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20354.

The product of its (nonzero) digits is 188160, while the sum is 39.

The spelling of 21035427474 in words is "twenty-one billion, thirty-five million, four hundred twenty-seven thousand, four hundred seventy-four".