273105380720 has 20 divisors (see below), whose sum is σ = 634970010360. Its totient is φ = 109242152256.

The previous prime is 273105380699. The next prime is 273105380791. The reversal of 273105380720 is 27083501372.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×273105380720² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706908550 + ... + 1706908709.

It is an arithmetic number, because the mean of its divisors is an integer number (31748500518).

Almost surely, 2^273105380720 is an apocalyptic number.

273105380720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

273105380720 is an abundant number, since it is smaller than the sum of its proper divisors (361864629640).

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

273105380720 is a wasteful number, since it uses less digits than its factorization.

273105380720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413817272 (or 3413817266 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 273105380720 in words is "two hundred seventy-three billion, one hundred five million, three hundred eighty thousand, seven hundred twenty".