1306500026542 has 16 divisors (see below), whose sum is σ = 1992496860432. Its totient is φ = 642341070720.

The previous prime is 1306500026509. The next prime is 1306500026543. The reversal of 1306500026542 is 2456200056031.

It is a junction number, because it is equal to n+sod(n) for n = 1306500026498 and 1306500026507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306500026543) 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 7 ways as a sum of consecutive naturals, for example, 1271968 + ... + 2056915.

It is an arithmetic number, because the mean of its divisors is an integer number (124531053777).

Almost surely, 2^{1306500026542} is an apocalyptic number.

1306500026542 is a deficient number, since it is larger than the sum of its proper divisors (685996833890).

1306500026542 is a wasteful number, since it uses less digits than its factorization.

1306500026542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332163.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 1306500026542 in words is "one trillion, three hundred six billion, five hundred million, twenty-six thousand, five hundred forty-two".