273027720420 has 576 divisors, whose sum is σ = 1088525168640. Its totient is φ = 53822361600.

The previous prime is 273027720359. The next prime is 273027720443. The reversal of 273027720420 is 24027720372.

It is a happy number.

It is a super-2 number, since 2×273027720420² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14716350 + ... + 14734890.

It is an arithmetic number, because the mean of its divisors is an integer number (1889800640).

Almost surely, 2^273027720420 is an apocalyptic number.

273027720420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273027720420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544262584320).

273027720420 is an abundant number, since it is smaller than the sum of its proper divisors (815497448220).

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

273027720420 is a wasteful number, since it uses less digits than its factorization.

273027720420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18636 (or 18631 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The spelling of 273027720420 in words is "two hundred seventy-three billion, twenty-seven million, seven hundred twenty thousand, four hundred twenty".