39420551973 has 8 divisors (see below), whose sum is σ = 57338984736. Its totient is φ = 23891243600.

The previous prime is 39420551959. The next prime is 39420551981. The reversal of 39420551973 is 37915502493.

39420551973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39420551973 - 2⁸ = 39420551717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39420551923) 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, 597281058 + ... + 597281123.

It is an arithmetic number, because the mean of its divisors is an integer number (7167373092).

Almost surely, 2^39420551973 is an apocalyptic number.

39420551973 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

39420551973 is a deficient number, since it is larger than the sum of its proper divisors (17918432763).

39420551973 is a wasteful number, since it uses less digits than its factorization.

39420551973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194562195.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 39420551973 in words is "thirty-nine billion, four hundred twenty million, five hundred fifty-one thousand, nine hundred seventy-three".