1540781308102 has 16 divisors (see below), whose sum is σ = 2511290419200. Its totient is φ = 706300429320.

The previous prime is 1540781308037. The next prime is 1540781308117. The reversal of 1540781308102 is 2018031870451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653980702 + ... + 653983057.

It is an arithmetic number, because the mean of its divisors is an integer number (156955651200).

Almost surely, 2^{1540781308102} is an apocalyptic number.

1540781308102 is a deficient number, since it is larger than the sum of its proper divisors (970509111098).

1540781308102 is a wasteful number, since it uses less digits than its factorization.

1540781308102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307963811.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 1540781308102 in words is "one trillion, five hundred forty billion, seven hundred eighty-one million, three hundred eight thousand, one hundred two".