26439414016 has 72 divisors (see below), whose sum is σ = 55982155320. Its totient is φ = 12419334144.

The previous prime is 26439413983. The next prime is 26439414049. The reversal of 26439414016 is 61041493462.

It is an interprime number because it is at equal distance from previous prime (26439413983) and next prime (26439414049).

It can be written as a sum of positive squares in 4 ways, for example, as 20077756416 + 6361657600 = 141696^2 + 79760^2 .

It is a super-2 number, since 2×26439414016² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26439414016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2505840 + ... + 2516368.

It is an arithmetic number, because the mean of its divisors is an integer number (777529935).

Almost surely, 2^26439414016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26439414016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27991077660).

26439414016 is an abundant number, since it is smaller than the sum of its proper divisors (29542741304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26439414016 is a wasteful number, since it uses less digits than its factorization.

26439414016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139 (or 11125 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 26439414016 in words is "twenty-six billion, four hundred thirty-nine million, four hundred fourteen thousand, sixteen".