61440711 has 8 divisors (see below), whose sum is σ = 82105200. Its totient is φ = 40868352.

The previous prime is 61440671. The next prime is 61440719. The reversal of 61440711 is 11704416.

61440711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61440711 - 2⁷ = 61440583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61440719) 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 in 7 ways as a sum of consecutive naturals, for example, 21460 + ... + 24153.

It is an arithmetic number, because the mean of its divisors is an integer number (10263150).

Almost surely, 2^61440711 is an apocalyptic number.

61440711 is a deficient number, since it is larger than the sum of its proper divisors (20664489).

61440711 is a wasteful number, since it uses less digits than its factorization.

61440711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46065.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 61440711 is about 7838.4125306085. The cubic root of 61440711 is about 394.5954540023.

The spelling of 61440711 in words is "sixty-one million, four hundred forty thousand, seven hundred eleven".