64634530748 has 24 divisors (see below), whose sum is σ = 114401615328. Its totient is φ = 31949415936.

The previous prime is 64634530693. The next prime is 64634530759. The reversal of 64634530748 is 84703543646.

64634530748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64634530696 and 64634530705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112040 + ... + 376592.

It is an arithmetic number, because the mean of its divisors is an integer number (4766733972).

Almost surely, 2^64634530748 is an apocalyptic number.

It is an amenable number.

64634530748 is a deficient number, since it is larger than the sum of its proper divisors (49767084580).

64634530748 is a wasteful number, since it uses less digits than its factorization.

64634530748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265253 (or 265251 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 50.

The spelling of 64634530748 in words is "sixty-four billion, six hundred thirty-four million, five hundred thirty thousand, seven hundred forty-eight".