26770382949 has 4 divisors (see below), whose sum is σ = 35693843936. Its totient is φ = 17846921964.

The previous prime is 26770382941. The next prime is 26770382963. The reversal of 26770382949 is 94928307762.

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 not a de Polignac number, because 26770382949 - 2³ = 26770382941 is a prime.

It is a super-2 number, since 2×26770382949² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26770382941) 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 3 ways as a sum of consecutive naturals, for example, 4461730489 + ... + 4461730494.

It is an arithmetic number, because the mean of its divisors is an integer number (8923460984).

Almost surely, 2^26770382949 is an apocalyptic number.

It is an amenable number.

26770382949 is a deficient number, since it is larger than the sum of its proper divisors (8923460987).

26770382949 is an equidigital number, since it uses as much as digits as its factorization.

26770382949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923460986.

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 26770382949 in words is "twenty-six billion, seven hundred seventy million, three hundred eighty-two thousand, nine hundred forty-nine".