39780987700601 has 18 divisors (see below), whose sum is σ = 46516858513902. Its totient is φ = 33921314380800.

The previous prime is 39780987700549. The next prime is 39780987700609. The reversal of 39780987700601 is 10600778908793.

It can be written as a sum of positive squares in 3 ways, for example, as 3822963457600 + 35958024243001 = 1955240^2 + 5996501^2 .

It is not a de Polignac number, because 39780987700601 - 2⁶ = 39780987700537 is a prime.

It is a super-2 number, since 2×39780987700601² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39780987700609) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9072500 + ... + 12722901.

It is an arithmetic number, because the mean of its divisors is an integer number (2584269917439).

Almost surely, 2^{39780987700601} is an apocalyptic number.

It is an amenable number.

39780987700601 is a deficient number, since it is larger than the sum of its proper divisors (6735870813301).

39780987700601 is an equidigital number, since it uses as much as digits as its factorization.

39780987700601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21795801 (or 21795601 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 65.

The spelling of 39780987700601 in words is "thirty-nine trillion, seven hundred eighty billion, nine hundred eighty-seven million, seven hundred thousand, six hundred one".