39920064548 has 48 divisors (see below), whose sum is σ = 86042557440. Its totient is φ = 15781371264.

The previous prime is 39920064493. The next prime is 39920064599. The reversal of 39920064548 is 84546002993.

It is a super-2 number, since 2×39920064548² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39920064496 and 39920064505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485690 + ... + 561902.

It is an arithmetic number, because the mean of its divisors is an integer number (1792553280).

Almost surely, 2^39920064548 is an apocalyptic number.

It is an amenable number.

39920064548 is an abundant number, since it is smaller than the sum of its proper divisors (46122492892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39920064548 is a wasteful number, since it uses less digits than its factorization.

39920064548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77676 (or 77674 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 39920064548 in words is "thirty-nine billion, nine hundred twenty million, sixty-four thousand, five hundred forty-eight".