39045609720 has 96 divisors (see below), whose sum is σ = 136659650400. Its totient is φ = 9611225856.

The previous prime is 39045609719. The next prime is 39045609731. The reversal of 39045609720 is 2790654093.

It is a happy number.

39045609720 is a `hidden beast` number, since 3 + 90 + 456 + 0 + 97 + 20 = 666.

39045609720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4166860 + ... + 4176219.

It is an arithmetic number, because the mean of its divisors is an integer number (1423538025).

Almost surely, 2^39045609720 is an apocalyptic number.

39045609720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39045609720 is an abundant number, since it is smaller than the sum of its proper divisors (97614040680).

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

39045609720 is a wasteful number, since it uses less digits than its factorization.

39045609720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8343109 (or 8343102 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 39045609720 in words is "thirty-nine billion, forty-five million, six hundred nine thousand, seven hundred twenty".