39574606813 has 12 divisors (see below), whose sum is σ = 46269462492. Its totient is φ = 33748895040.

The previous prime is 39574606807. The next prime is 39574606823. The reversal of 39574606813 is 31860647593.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38803878169 + 770728644 = 196987^2 + 27762^2 .

It is not a de Polignac number, because 39574606813 - 2⁵ = 39574606781 is a prime.

It is a super-2 number, since 2×39574606813² (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 (39574606823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2040208 + ... + 2059513.

It is an arithmetic number, because the mean of its divisors is an integer number (3855788541).

Almost surely, 2^39574606813 is an apocalyptic number.

It is an amenable number.

39574606813 is a deficient number, since it is larger than the sum of its proper divisors (6694855679).

39574606813 is a wasteful number, since it uses less digits than its factorization.

39574606813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099932 (or 4099925 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 39574606813 in words is "thirty-nine billion, five hundred seventy-four million, six hundred six thousand, eight hundred thirteen".