26954388985 has 8 divisors (see below), whose sum is σ = 32346205056. Its totient is φ = 21562885680.

The previous prime is 26954388983. The next prime is 26954389001. The reversal of 26954388985 is 58988345962.

It is a happy number.

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

It is not a de Polignac number, because 26954388985 - 2¹ = 26954388983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26954388985.

It is not an unprimeable number, because it can be changed into a prime (26954388983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204000 + ... + 309070.

It is an arithmetic number, because the mean of its divisors is an integer number (4043275632).

Almost surely, 2^26954388985 is an apocalyptic number.

It is an amenable number.

26954388985 is a deficient number, since it is larger than the sum of its proper divisors (5391816071).

26954388985 is a wasteful number, since it uses less digits than its factorization.

26954388985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156383.

The product of its digits is 149299200, while the sum is 67.

The spelling of 26954388985 in words is "twenty-six billion, nine hundred fifty-four million, three hundred eighty-eight thousand, nine hundred eighty-five".