21473800078080 has 216 divisors, whose sum is σ = 79779002596272. Its totient is φ = 4908297117696.

The previous prime is 21473800078067. The next prime is 21473800078091. The reversal of 21473800078080 is 8087000837412.

It is a happy number.

It is a super-2 number, since 2×21473800078080² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56874447 + ... + 57250766.

It is an arithmetic number, because the mean of its divisors is an integer number (369347234242).

Almost surely, 2^{21473800078080} is an apocalyptic number.

21473800078080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21473800078080 is an abundant number, since it is smaller than the sum of its proper divisors (58305202518192).

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

21473800078080 is a wasteful number, since it uses less digits than its factorization.

21473800078080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114125251 (or 114125230 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The spelling of 21473800078080 in words is "twenty-one trillion, four hundred seventy-three billion, eight hundred million, seventy-eight thousand, eighty".