2615235312545 has 4 divisors (see below), whose sum is σ = 3138282375060. Its totient is φ = 2092188250032.

The previous prime is 2615235312541. The next prime is 2615235312589. The reversal of 2615235312545 is 5452135325162.

2615235312545 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 716332020496 + 1898903292049 = 846364^2 + 1378007^2 .

It is a cyclic number.

It is not a de Polignac number, because 2615235312545 - 2² = 2615235312541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2615235312496 and 2615235312505.

It is not an unprimeable number, because it can be changed into a prime (2615235312541) 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, 261523531250 + ... + 261523531259.

It is an arithmetic number, because the mean of its divisors is an integer number (784570593765).

Almost surely, 2^{2615235312545} is an apocalyptic number.

It is an amenable number.

2615235312545 is a deficient number, since it is larger than the sum of its proper divisors (523047062515).

2615235312545 is an equidigital number, since it uses as much as digits as its factorization.

2615235312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523047062514.

The product of its digits is 1080000, while the sum is 44.

The spelling of 2615235312545 in words is "two trillion, six hundred fifteen billion, two hundred thirty-five million, three hundred twelve thousand, five hundred forty-five".