26673997779 has 48 divisors (see below), whose sum is σ = 45426667104. Its totient is φ = 14869209600.

The previous prime is 26673997697. The next prime is 26673997787. The reversal of 26673997779 is 97779937662.

It is not a de Polignac number, because 26673997779 - 2¹² = 26673993683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26673997789) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324769 + ... + 398525.

It is an arithmetic number, because the mean of its divisors is an integer number (946388898).

Almost surely, 2^26673997779 is an apocalyptic number.

26673997779 is a deficient number, since it is larger than the sum of its proper divisors (18752669325).

26673997779 is a wasteful number, since it uses less digits than its factorization.

26673997779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74068 (or 74065 counting only the distinct ones).

The product of its digits is 378071064, while the sum is 72.

The spelling of 26673997779 in words is "twenty-six billion, six hundred seventy-three million, nine hundred ninety-seven thousand, seven hundred seventy-nine".