21473381367482 has 32 divisors (see below), whose sum is σ = 35742149432640. Its totient is φ = 9592958033280.

The previous prime is 21473381367479. The next prime is 21473381367517. The reversal of 21473381367482 is 28476318337412.

It is a happy number.

It is a super-2 number, since 2×21473381367482² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

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, 3652508 + ... + 7502504.

It is an arithmetic number, because the mean of its divisors is an integer number (1116942169770).

Almost surely, 2^{21473381367482} is an apocalyptic number.

21473381367482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21473381367482 is a deficient number, since it is larger than the sum of its proper divisors (14268768065158).

21473381367482 is a wasteful number, since it uses less digits than its factorization.

21473381367482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854366.

The product of its digits is 32514048, while the sum is 59.

The spelling of 21473381367482 in words is "twenty-one trillion, four hundred seventy-three billion, three hundred eighty-one million, three hundred sixty-seven thousand, four hundred eighty-two".