3487538207509 has 4 divisors (see below), whose sum is σ = 3487699607040. Its totient is φ = 3487376807980.

The previous prime is 3487538207479. The next prime is 3487538207551. The reversal of 3487538207509 is 9057028357843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3487538207509 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 (3487538207599) 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, 80667349 + ... + 80710570.

It is an arithmetic number, because the mean of its divisors is an integer number (871924901760).

Almost surely, 2^{3487538207509} is an apocalyptic number.

It is an amenable number.

3487538207509 is a deficient number, since it is larger than the sum of its proper divisors (161399531).

3487538207509 is a wasteful number, since it uses less digits than its factorization.

3487538207509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161399530.

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 3487538207509 in words is "three trillion, four hundred eighty-seven billion, five hundred thirty-eight million, two hundred seven thousand, five hundred nine".