39149542373 has 8 divisors (see below), whose sum is σ = 39691572696. Its totient is φ = 38607667200.

The previous prime is 39149542357. The next prime is 39149542387. The reversal of 39149542373 is 37324594193.

It can be written as a sum of positive squares in 4 ways, for example, as 3329059204 + 35820483169 = 57698^2 + 189263^2 .

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 39149542373 - 2⁴ = 39149542357 is a prime.

It is a super-2 number, since 2×39149542373² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39149542073) 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, 525803 + ... + 595623.

It is an arithmetic number, because the mean of its divisors is an integer number (4961446587).

Almost surely, 2^39149542373 is an apocalyptic number.

It is an amenable number.

39149542373 is a deficient number, since it is larger than the sum of its proper divisors (542030323).

39149542373 is an equidigital number, since it uses as much as digits as its factorization.

39149542373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77575.

The product of its digits is 2449440, while the sum is 50.

The spelling of 39149542373 in words is "thirty-nine billion, one hundred forty-nine million, five hundred forty-two thousand, three hundred seventy-three".