26142509136 has 40 divisors (see below), whose sum is σ = 70471114560. Its totient is φ = 8335292416.

The previous prime is 26142509131. The next prime is 26142509143. The reversal of 26142509136 is 63190524162.

It is a junction number, because it is equal to n+sod(n) for n = 26142509094 and 26142509103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26142509131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11838801 + ... + 11841008.

It is an arithmetic number, because the mean of its divisors is an integer number (1761777864).

Almost surely, 2^26142509136 is an apocalyptic number.

It is an amenable number.

26142509136 is an abundant number, since it is smaller than the sum of its proper divisors (44328605424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26142509136 is a wasteful number, since it uses less digits than its factorization.

26142509136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23679843 (or 23679837 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 26142509136 in words is "twenty-six billion, one hundred forty-two million, five hundred nine thousand, one hundred thirty-six".