39696545820 has 48 divisors (see below), whose sum is σ = 111284869248. Its totient is φ = 10572932160.

The previous prime is 39696545767. The next prime is 39696545831. The reversal of 39696545820 is 2854569693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350386 + ... + 449625.

It is an arithmetic number, because the mean of its divisors is an integer number (2318434776).

Almost surely, 2^39696545820 is an apocalyptic number.

39696545820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39696545820 is an abundant number, since it is smaller than the sum of its proper divisors (71588323428).

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

39696545820 is a wasteful number, since it uses less digits than its factorization.

39696545820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800850 (or 800848 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 57.

The spelling of 39696545820 in words is "thirty-nine billion, six hundred ninety-six million, five hundred forty-five thousand, eight hundred twenty".