64351240423735 has 16 divisors (see below), whose sum is σ = 79308868178592. Its totient is φ = 50089416854400.

The previous prime is 64351240423697. The next prime is 64351240423759. The reversal of 64351240423735 is 53732404215346.

It is a happy number.

It is not a de Polignac number, because 64351240423735 - 2²⁹ = 64350703552823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61733965 + ... + 62767705.

It is an arithmetic number, because the mean of its divisors is an integer number (4956804261162).

Almost surely, 2^{64351240423735} is an apocalyptic number.

64351240423735 is a deficient number, since it is larger than the sum of its proper divisors (14957627754857).

64351240423735 is a wasteful number, since it uses less digits than its factorization.

64351240423735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370274.

The product of its (nonzero) digits is 7257600, while the sum is 49.

The spelling of 64351240423735 in words is "sixty-four trillion, three hundred fifty-one billion, two hundred forty million, four hundred twenty-three thousand, seven hundred thirty-five".