26420640750 has 240 divisors, whose sum is σ = 85949751888. Its totient is φ = 6038776800.

The previous prime is 26420640739. The next prime is 26420640773. The reversal of 26420640750 is 5704602462.

26420640750 is a `hidden beast` number, since 2 + 6 + 4 + 2 + 0 + 640 + 7 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 978937 + ... + 1005563.

Almost surely, 2^26420640750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26420640750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42974875944).

26420640750 is an abundant number, since it is smaller than the sum of its proper divisors (59529111138).

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

26420640750 is a wasteful number, since it uses less digits than its factorization.

26420640750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26670 (or 26644 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 26420640750 in words is "twenty-six billion, four hundred twenty million, six hundred forty thousand, seven hundred fifty".