26926179840 has 1280 divisors, whose sum is σ = 120206592000. Its totient is φ = 5573836800.

The previous prime is 26926179817. The next prime is 26926179881. The reversal of 26926179840 is 4897162962.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 266595790 + ... + 266595890.

It is an arithmetic number, because the mean of its divisors is an integer number (93911400).

Almost surely, 2^26926179840 is an apocalyptic number.

26926179840 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 26926179840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60103296000).

26926179840 is an abundant number, since it is smaller than the sum of its proper divisors (93280412160).

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

26926179840 is a wasteful number, since it uses less digits than its factorization.

26926179840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 26926179840 in words is "twenty-six billion, nine hundred twenty-six million, one hundred seventy-nine thousand, eight hundred forty".