1540102425505 has 48 divisors (see below), whose sum is σ = 2274650467200. Its totient is φ = 1000487188512.

The previous prime is 1540102425503. The next prime is 1540102425577. The reversal of 1540102425505 is 5055242010451.

It is not a de Polignac number, because 1540102425505 - 2¹ = 1540102425503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1540102425503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 624679 + ... + 1862908.

It is an arithmetic number, because the mean of its divisors is an integer number (47388551400).

Almost surely, 2^{1540102425505} is an apocalyptic number.

It is an amenable number.

1540102425505 is a deficient number, since it is larger than the sum of its proper divisors (734548041695).

1540102425505 is an equidigital number, since it uses as much as digits as its factorization.

1540102425505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487651 (or 2487618 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 1540102425505 its reverse (5055242010451), we get a palindrome (6595344435956).

The spelling of 1540102425505 in words is "one trillion, five hundred forty billion, one hundred two million, four hundred twenty-five thousand, five hundred five".