6109771545 has 32 divisors (see below), whose sum is σ = 10879568640. Its totient is φ = 3253219200.

The previous prime is 6109771531. The next prime is 6109771553. The reversal of 6109771545 is 5451779016.

6109771545 is a `hidden beast` number, since 6 + 10 + 97 + 7 + 1 + 545 = 666.

It is not a de Polignac number, because 6109771545 - 2¹⁷ = 6109640473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6109771545.

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, 46620 + ... + 119970.

It is an arithmetic number, because the mean of its divisors is an integer number (339986520).

Almost surely, 2^6109771545 is an apocalyptic number.

It is an amenable number.

6109771545 is a deficient number, since it is larger than the sum of its proper divisors (4769797095).

6109771545 is a wasteful number, since it uses less digits than its factorization.

6109771545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73982 (or 73976 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The square root of 6109771545 is about 78165.0276338466. The cubic root of 6109771545 is about 1828.1352544855.

The spelling of 6109771545 in words is "six billion, one hundred nine million, seven hundred seventy-one thousand, five hundred forty-five".