27711620745 has 16 divisors (see below), whose sum is σ = 46672203840. Its totient is φ = 14001660864.

The previous prime is 27711620743. The next prime is 27711620747. The reversal of 27711620745 is 54702611772.

It is an interprime number because it is at equal distance from previous prime (27711620743) and next prime (27711620747).

It is not a de Polignac number, because 27711620745 - 2¹ = 27711620743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27711620697 and 27711620706.

It is not an unprimeable number, because it can be changed into a prime (27711620743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48616594 + ... + 48617163.

It is an arithmetic number, because the mean of its divisors is an integer number (2917012740).

Almost surely, 2^27711620745 is an apocalyptic number.

It is an amenable number.

27711620745 is a deficient number, since it is larger than the sum of its proper divisors (18960583095).

27711620745 is a wasteful number, since it uses less digits than its factorization.

27711620745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97233784.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 27711620745 in words is "twenty-seven billion, seven hundred eleven million, six hundred twenty thousand, seven hundred forty-five".