272480387777 has 4 divisors (see below), whose sum is σ = 293440417620. Its totient is φ = 251520357936.

The previous prime is 272480387761. The next prime is 272480387801. The reversal of 272480387777 is 777783084272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10790846641 + 261689541136 = 103879^2 + 511556^2 .

It is a cyclic number.

It is not a de Polignac number, because 272480387777 - 2⁴ = 272480387761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272480387477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10480014902 + ... + 10480014927.

It is an arithmetic number, because the mean of its divisors is an integer number (73360104405).

Almost surely, 2^272480387777 is an apocalyptic number.

It is an amenable number.

272480387777 is a deficient number, since it is larger than the sum of its proper divisors (20960029843).

272480387777 is a wasteful number, since it uses less digits than its factorization.

272480387777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20960029842.

The product of its (nonzero) digits is 51631104, while the sum is 62.

The spelling of 272480387777 in words is "two hundred seventy-two billion, four hundred eighty million, three hundred eighty-seven thousand, seven hundred seventy-seven".