3478013791237 has 4 divisors (see below), whose sum is σ = 3488334307276. Its totient is φ = 3467693275200.

The previous prime is 3478013791157. The next prime is 3478013791271. The reversal of 3478013791237 is 7321973108743.

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 1217107607076 + 2260906184161 = 1103226^2 + 1503631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3478013791237 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 (3478013701237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5160257514 + ... + 5160258187.

It is an arithmetic number, because the mean of its divisors is an integer number (872083576819).

Almost surely, 2^{3478013791237} is an apocalyptic number.

It is an amenable number.

3478013791237 is a deficient number, since it is larger than the sum of its proper divisors (10320516039).

3478013791237 is a wasteful number, since it uses less digits than its factorization.

3478013791237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320516038.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 3478013791237 in words is "three trillion, four hundred seventy-eight billion, thirteen million, seven hundred ninety-one thousand, two hundred thirty-seven".