26977820473 has 4 divisors (see below), whose sum is σ = 26992718928. Its totient is φ = 26962922020.

The previous prime is 26977820431. The next prime is 26977820477. The reversal of 26977820473 is 37402877962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26977820473 - 2²¹ = 26975723321 is a prime.

It is a super-3 number, since 3×26977820473³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26977820477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7446511 + ... + 7450132.

It is an arithmetic number, because the mean of its divisors is an integer number (6748179732).

Almost surely, 2^26977820473 is an apocalyptic number.

It is an amenable number.

26977820473 is a deficient number, since it is larger than the sum of its proper divisors (14898455).

26977820473 is a wasteful number, since it uses less digits than its factorization.

26977820473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14898454.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 26977820473 in words is "twenty-six billion, nine hundred seventy-seven million, eight hundred twenty thousand, four hundred seventy-three".