61463828565 has 32 divisors (see below), whose sum is σ = 110585543040. Its totient is φ = 32385754368.

The previous prime is 61463828513. The next prime is 61463828581. The reversal of 61463828565 is 56582836416.

61463828565 is a `hidden beast` number, since 6 + 1 + 46 + 38 + 2 + 8 + 565 = 666.

It is not a de Polignac number, because 61463828565 - 2⁶ = 61463828501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2731492 + ... + 2753901.

It is an arithmetic number, because the mean of its divisors is an integer number (3455798220).

Almost surely, 2^61463828565 is an apocalyptic number.

It is an amenable number.

61463828565 is a deficient number, since it is larger than the sum of its proper divisors (49121714475).

61463828565 is a wasteful number, since it uses less digits than its factorization.

61463828565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485490 (or 5485484 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 61463828565 in words is "sixty-one billion, four hundred sixty-three million, eight hundred twenty-eight thousand, five hundred sixty-five".