26415140389 has 8 divisors (see below), whose sum is σ = 28840093632. Its totient is φ = 23994116640.

The previous prime is 26415140387. The next prime is 26415140417. The reversal of 26415140389 is 98304151462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26415140389 - 2¹ = 26415140387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26415140387) 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, 968304 + ... + 995209.

It is an arithmetic number, because the mean of its divisors is an integer number (3605011704).

Almost surely, 2^26415140389 is an apocalyptic number.

It is an amenable number.

26415140389 is a deficient number, since it is larger than the sum of its proper divisors (2424953243).

26415140389 is a wasteful number, since it uses less digits than its factorization.

26415140389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964747.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 26415140389 in words is "twenty-six billion, four hundred fifteen million, one hundred forty thousand, three hundred eighty-nine".