64697639414 has 8 divisors (see below), whose sum is σ = 97083493488. Its totient is φ = 32336474920.

The previous prime is 64697639401. The next prime is 64697639443. The reversal of 64697639414 is 41493679646.

64697639414 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6165842 + ... + 6176325.

It is an arithmetic number, because the mean of its divisors is an integer number (12135436686).

Almost surely, 2^64697639414 is an apocalyptic number.

64697639414 is a deficient number, since it is larger than the sum of its proper divisors (32385854074).

64697639414 is a wasteful number, since it uses less digits than its factorization.

64697639414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12344790.

The product of its digits is 23514624, while the sum is 59.

The spelling of 64697639414 in words is "sixty-four billion, six hundred ninety-seven million, six hundred thirty-nine thousand, four hundred fourteen".