273968197540 has 24 divisors (see below), whose sum is σ = 575367545592. Its totient is φ = 109580739840.

The previous prime is 273968197537. The next prime is 273968197541. The reversal of 273968197540 is 45791869372.

It can be written as a sum of positive squares in 4 ways, for example, as 16562145636 + 257406051904 = 128694^2 + 507352^2 .

It is not an unprimeable number, because it can be changed into a prime (273968197541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57801 + ... + 742480.

It is an arithmetic number, because the mean of its divisors is an integer number (23973647733).

It is a 1-persistent number, because it is pandigital, but 2⋅273968197540 = 547936395080 is not.

Almost surely, 2^273968197540 is an apocalyptic number.

273968197540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

273968197540 is an abundant number, since it is smaller than the sum of its proper divisors (301399348052).

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

273968197540 is a wasteful number, since it uses less digits than its factorization.

273968197540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817407 (or 817405 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 273968197540 in words is "two hundred seventy-three billion, nine hundred sixty-eight million, one hundred ninety-seven thousand, five hundred forty".