5620545864 has 24 divisors (see below), whose sum is σ = 15222311910. Its totient is φ = 1873515264.

The previous prime is 5620545859. The next prime is 5620545871. The reversal of 5620545864 is 4685450265.

5620545864 is a `hidden beast` number, since 5 + 6 + 20 + 545 + 86 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3369802500 + 2250743364 = 58050^2 + 47442^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39031497 + ... + 39031640.

Almost surely, 2^5620545864 is an apocalyptic number.

It is an amenable number.

5620545864 is an abundant number, since it is smaller than the sum of its proper divisors (9601766046).

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

5620545864 is a wasteful number, since it uses less digits than its factorization.

5620545864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78063149 (or 78063142 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The square root of 5620545864 is about 74970.2998793522. The cubic root of 5620545864 is about 1777.9771094282.

The spelling of 5620545864 in words is "five billion, six hundred twenty million, five hundred forty-five thousand, eight hundred sixty-four".