61464468385 has 8 divisors (see below), whose sum is σ = 73819506816. Its totient is φ = 49130144880.

The previous prime is 61464468367. The next prime is 61464468391. The reversal of 61464468385 is 58386446416.

It is a happy number.

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

It is not a de Polignac number, because 61464468385 - 2²⁵ = 61430913953 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 5172201 + ... + 5184070.

It is an arithmetic number, because the mean of its divisors is an integer number (9227438352).

Almost surely, 2^61464468385 is an apocalyptic number.

It is an amenable number.

61464468385 is a deficient number, since it is larger than the sum of its proper divisors (12355038431).

61464468385 is a wasteful number, since it uses less digits than its factorization.

61464468385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10357463.

The product of its digits is 13271040, while the sum is 55.

The spelling of 61464468385 in words is "sixty-one billion, four hundred sixty-four million, four hundred sixty-eight thousand, three hundred eighty-five".