61386464 has 12 divisors (see below), whose sum is σ = 120854664. Its totient is φ = 30693216.

The previous prime is 61386463. The next prime is 61386527. The reversal of 61386464 is 46468316.

61386464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61386461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959132 + ... + 959195.

It is an arithmetic number, because the mean of its divisors is an integer number (10071222).

Almost surely, 2^61386464 is an apocalyptic number.

It is an amenable number.

61386464 is a deficient number, since it is larger than the sum of its proper divisors (59468200).

61386464 is a wasteful number, since it uses less digits than its factorization.

61386464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918337 (or 1918329 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 61386464 is about 7834.9514357142. The cubic root of 61386464 is about 394.4792882324.

The spelling of 61386464 in words is "sixty-one million, three hundred eighty-six thousand, four hundred sixty-four".