27780030530 has 64 divisors (see below), whose sum is σ = 60181954560. Its totient is φ = 9019283904.

The previous prime is 27780030521. The next prime is 27780030583. The reversal of 27780030530 is 3503008772.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5135087 + ... + 5140493.

It is an arithmetic number, because the mean of its divisors is an integer number (940343040).

Almost surely, 2^27780030530 is an apocalyptic number.

27780030530 is an abundant number, since it is smaller than the sum of its proper divisors (32401924030).

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

27780030530 is a wasteful number, since it uses less digits than its factorization.

27780030530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 27780030530 in words is "twenty-seven billion, seven hundred eighty million, thirty thousand, five hundred thirty".