39374521145 has 4 divisors (see below), whose sum is σ = 47249425380. Its totient is φ = 31499616912.

The previous prime is 39374521141. The next prime is 39374521183. The reversal of 39374521145 is 54112547393.

It is a happy number.

39374521145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31140955024 + 8233566121 = 176468^2 + 90739^2 .

It is a cyclic number.

It is not a de Polignac number, because 39374521145 - 2² = 39374521141 is a prime.

It is a super-2 number, since 2×39374521145² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39374521096 and 39374521105.

It is not an unprimeable number, because it can be changed into a prime (39374521141) 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, 3937452110 + ... + 3937452119.

It is an arithmetic number, because the mean of its divisors is an integer number (11812356345).

Almost surely, 2^39374521145 is an apocalyptic number.

It is an amenable number.

39374521145 is a deficient number, since it is larger than the sum of its proper divisors (7874904235).

39374521145 is an equidigital number, since it uses as much as digits as its factorization.

39374521145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874904234.

The product of its digits is 453600, while the sum is 44.

The spelling of 39374521145 in words is "thirty-nine billion, three hundred seventy-four million, five hundred twenty-one thousand, one hundred forty-five".