64749301871 has 8 divisors (see below), whose sum is σ = 68620943664. Its totient is φ = 60884644480.

The previous prime is 64749301861. The next prime is 64749301891. The reversal of 64749301871 is 17810394746.

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-64749301871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64749301811) 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, 1727000 + ... + 1764093.

It is an arithmetic number, because the mean of its divisors is an integer number (8577617958).

Almost surely, 2^64749301871 is an apocalyptic number.

64749301871 is a deficient number, since it is larger than the sum of its proper divisors (3871641793).

64749301871 is a wasteful number, since it uses less digits than its factorization.

64749301871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492201.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 64749301871 in words is "sixty-four billion, seven hundred forty-nine million, three hundred one thousand, eight hundred seventy-one".