27780003052505 has 8 divisors (see below), whose sum is σ = 36366549450624. Its totient is φ = 20203638583600.

The previous prime is 27780003052493. The next prime is 27780003052519. The reversal of 27780003052505 is 50525030008772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-27780003052505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252545482241 + ... + 252545482350.

It is an arithmetic number, because the mean of its divisors is an integer number (4545818681328).

Almost surely, 2^{27780003052505} is an apocalyptic number.

It is an amenable number.

27780003052505 is a deficient number, since it is larger than the sum of its proper divisors (8586546398119).

27780003052505 is a wasteful number, since it uses less digits than its factorization.

27780003052505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505090964607.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 27780003052505 in words is "twenty-seven trillion, seven hundred eighty billion, three million, fifty-two thousand, five hundred five".