39782947653901 has 4 divisors (see below), whose sum is σ = 41154773435100. Its totient is φ = 38411121872704.

The previous prime is 39782947653893. The next prime is 39782947653941. The reversal of 39782947653901 is 10935674928793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13503493584100 + 26279454069801 = 3674710^2 + 5126349^2 .

It is a cyclic number.

It is not a de Polignac number, because 39782947653901 - 2³ = 39782947653893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39782947653941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685912890556 + ... + 685912890613.

It is an arithmetic number, because the mean of its divisors is an integer number (10288693358775).

It is a 1-persistent number, because it is pandigital, but 2⋅39782947653901 = 79565895307802 is not.

Almost surely, 2^{39782947653901} is an apocalyptic number.

It is an amenable number.

39782947653901 is a deficient number, since it is larger than the sum of its proper divisors (1371825781199).

39782947653901 is a wasteful number, since it uses less digits than its factorization.

39782947653901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371825781198.

The product of its (nonzero) digits is 617258880, while the sum is 73.

The spelling of 39782947653901 in words is "thirty-nine trillion, seven hundred eighty-two billion, nine hundred forty-seven million, six hundred fifty-three thousand, nine hundred one".