26949146947 has 8 divisors (see below), whose sum is σ = 27608600880. Its totient is φ = 26289795840.

The previous prime is 26949146881. The next prime is 26949146971. The reversal of 26949146947 is 74964194962.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26949146947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26949146047) 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, 975004 + ... + 1002262.

It is an arithmetic number, because the mean of its divisors is an integer number (3451075110).

Almost surely, 2^26949146947 is an apocalyptic number.

26949146947 is a deficient number, since it is larger than the sum of its proper divisors (659453933).

26949146947 is a wasteful number, since it uses less digits than its factorization.

26949146947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51413.

The product of its digits is 23514624, while the sum is 61.

The spelling of 26949146947 in words is "twenty-six billion, nine hundred forty-nine million, one hundred forty-six thousand, nine hundred forty-seven".