26963509440 has 224 divisors, whose sum is σ = 98810210304. Its totient is φ = 6101913600.

The previous prime is 26963509427. The next prime is 26963509483. The reversal of 26963509440 is 4490536962.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×26963509440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 26963509440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658857 + ... + 698583.

Almost surely, 2^26963509440 is an apocalyptic number.

26963509440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26963509440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49405105152).

26963509440 is an abundant number, since it is smaller than the sum of its proper divisors (71846700864).

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

26963509440 is a wasteful number, since it uses less digits than its factorization.

26963509440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39855 (or 39845 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 26963509440 in words is "twenty-six billion, nine hundred sixty-three million, five hundred nine thousand, four hundred forty".