64477390611671 has 8 divisors (see below), whose sum is σ = 64911097818000. Its totient is φ = 64043696379520.

The previous prime is 64477390611631. The next prime is 64477390611703. The reversal of 64477390611671 is 17611609377446.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64477390611671 is a prime.

It is a super-2 number, since 2×64477390611671² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64477390611631) 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, 6834176 + ... + 13253706.

It is an arithmetic number, because the mean of its divisors is an integer number (8113887227250).

Almost surely, 2^{64477390611671} is an apocalyptic number.

64477390611671 is a deficient number, since it is larger than the sum of its proper divisors (433707206329).

64477390611671 is a wasteful number, since it uses less digits than its factorization.

64477390611671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6487089.

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 64477390611671 in words is "sixty-four trillion, four hundred seventy-seven billion, three hundred ninety million, six hundred eleven thousand, six hundred seventy-one".