64481605577358 has 32 divisors (see below), whose sum is σ = 133141324250112. Its totient is φ = 20797703942400.

The previous prime is 64481605577357. The next prime is 64481605577407. The reversal of 64481605577358 is 85377550618446.

It is a junction number, because it is equal to n+sod(n) for n = 64481605577292 and 64481605577301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64481605577351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22071088 + ... + 24821283.

It is an arithmetic number, because the mean of its divisors is an integer number (4160666382816).

Almost surely, 2^{64481605577358} is an apocalyptic number.

64481605577358 is an abundant number, since it is smaller than the sum of its proper divisors (68659718672754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64481605577358 is a wasteful number, since it uses less digits than its factorization.

64481605577358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46899800.

The product of its (nonzero) digits is 677376000, while the sum is 69.

The spelling of 64481605577358 in words is "sixty-four trillion, four hundred eighty-one billion, six hundred five million, five hundred seventy-seven thousand, three hundred fifty-eight".