21417426467484 has 48 divisors (see below), whose sum is σ = 52148096931840. Its totient is φ = 6828571886400.

The previous prime is 21417426467471. The next prime is 21417426467543. The reversal of 21417426467484 is 48476462471412.

It is a congruent number.

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, 10175322 + ... + 12098430.

It is an arithmetic number, because the mean of its divisors is an integer number (1086418686080).

Almost surely, 2^{21417426467484} is an apocalyptic number.

It is an amenable number.

21417426467484 is an abundant number, since it is smaller than the sum of its proper divisors (30730670464356).

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

21417426467484 is a wasteful number, since it uses less digits than its factorization.

21417426467484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963490 (or 1963488 counting only the distinct ones).

The product of its digits is 57802752, while the sum is 60.

The spelling of 21417426467484 in words is "twenty-one trillion, four hundred seventeen billion, four hundred twenty-six million, four hundred sixty-seven thousand, four hundred eighty-four".