5615465391 has 24 divisors (see below), whose sum is σ = 8169910320. Its totient is φ = 3716654976.

The previous prime is 5615465327. The next prime is 5615465399. The reversal of 5615465391 is 1935645165.

5615465391 is a `hidden beast` number, since 5 + 61 + 54 + 6 + 539 + 1 = 666.

It is not a de Polignac number, because 5615465391 - 2⁶ = 5615465327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5615465399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 758355 + ... + 765723.

It is an arithmetic number, because the mean of its divisors is an integer number (340412930).

Almost surely, 2^5615465391 is an apocalyptic number.

5615465391 is a deficient number, since it is larger than the sum of its proper divisors (2554444929).

5615465391 is a wasteful number, since it uses less digits than its factorization.

5615465391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7975 (or 7972 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 5615465391 is about 74936.4089812155. The cubic root of 5615465391 is about 1777.4412369376.

The spelling of 5615465391 in words is "five billion, six hundred fifteen million, four hundred sixty-five thousand, three hundred ninety-one".