26819944950 has 96 divisors (see below), whose sum is σ = 71642736000. Its totient is φ = 6617963520.

The previous prime is 26819944933. The next prime is 26819944967. The reversal of 26819944950 is 5944991862.

It is an interprime number because it is at equal distance from previous prime (26819944933) and next prime (26819944967).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13126 + ... + 231974.

It is an arithmetic number, because the mean of its divisors is an integer number (746278500).

Almost surely, 2^26819944950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26819944950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35821368000).

26819944950 is an abundant number, since it is smaller than the sum of its proper divisors (44822791050).

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

26819944950 is a wasteful number, since it uses less digits than its factorization.

26819944950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218926 (or 218921 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 26819944950 in words is "twenty-six billion, eight hundred nineteen million, nine hundred forty-four thousand, nine hundred fifty".