64191477712443 has 8 divisors (see below), whose sum is σ = 87901843354128. Its totient is φ = 41637715272864.

The previous prime is 64191477712433. The next prime is 64191477712459. The reversal of 64191477712443 is 34421777419146.

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

It is not a de Polignac number, because 64191477712443 - 2⁶ = 64191477712379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64191477712433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289150800396 + ... + 289150800617.

It is an arithmetic number, because the mean of its divisors is an integer number (10987730419266).

Almost surely, 2^{64191477712443} is an apocalyptic number.

64191477712443 is a deficient number, since it is larger than the sum of its proper divisors (23710365641685).

64191477712443 is a wasteful number, since it uses less digits than its factorization.

64191477712443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578301601053.

The product of its digits is 28449792, while the sum is 60.

The spelling of 64191477712443 in words is "sixty-four trillion, one hundred ninety-one billion, four hundred seventy-seven million, seven hundred twelve thousand, four hundred forty-three".