39413431493 has 4 divisors (see below), whose sum is σ = 39498927468. Its totient is φ = 39327935520.

The previous prime is 39413431481. The next prime is 39413431507.

39413431493 is nontrivially palindromic in base 10.

39413431493 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 25687434529 + 13725996964 = 160273^2 + 117158^2 .

It is a cyclic number.

It is not a de Polignac number, because 39413431493 - 2⁶ = 39413431429 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 (39413431423) 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, 42747296 + ... + 42748217.

It is an arithmetic number, because the mean of its divisors is an integer number (9874731867).

Almost surely, 2^39413431493 is an apocalyptic number.

It is an amenable number.

39413431493 is a deficient number, since it is larger than the sum of its proper divisors (85495975).

39413431493 is an equidigital number, since it uses as much as digits as its factorization.

39413431493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85495974.

The product of its digits is 419904, while the sum is 44.

The spelling of 39413431493 in words is "thirty-nine billion, four hundred thirteen million, four hundred thirty-one thousand, four hundred ninety-three".