2600487685509 has 32 divisors (see below), whose sum is σ = 4003864730880. Its totient is φ = 1470539446272.

The previous prime is 2600487685493. The next prime is 2600487685519. The reversal of 2600487685509 is 9055867840062.

It is not a de Polignac number, because 2600487685509 - 2⁴ = 2600487685493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600487685519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24939927 + ... + 25043979.

It is an arithmetic number, because the mean of its divisors is an integer number (125120772840).

Almost surely, 2^{2600487685509} is an apocalyptic number.

It is an amenable number.

2600487685509 is a deficient number, since it is larger than the sum of its proper divisors (1403377045371).

2600487685509 is a wasteful number, since it uses less digits than its factorization.

2600487685509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116429.

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 2600487685509 in words is "two trillion, six hundred billion, four hundred eighty-seven million, six hundred eighty-five thousand, five hundred nine".