3520135340742 has 32 divisors (see below), whose sum is σ = 7081756821504. Its totient is φ = 1166472122400.

The previous prime is 3520135340719. The next prime is 3520135340747. The reversal of 3520135340742 is 2470435310253.

It is a happy number.

It is a super-2 number, since 2×3520135340742² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3520135340742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520135340747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751368 + ... + 2757684.

It is an arithmetic number, because the mean of its divisors is an integer number (221304900672).

Almost surely, 2^{3520135340742} is an apocalyptic number.

3520135340742 is an abundant number, since it is smaller than the sum of its proper divisors (3561621480762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3520135340742 is a wasteful number, since it uses less digits than its factorization.

3520135340742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008044.

The product of its (nonzero) digits is 302400, while the sum is 39.

The spelling of 3520135340742 in words is "three trillion, five hundred twenty billion, one hundred thirty-five million, three hundred forty thousand, seven hundred forty-two".