26410370640 has 160 divisors (see below), whose sum is σ = 86109060096. Its totient is φ = 6686883840.

The previous prime is 26410370617. The next prime is 26410370647. The reversal of 26410370640 is 4607301462.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26410370647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360832 + ... + 427808.

Almost surely, 2^26410370640 is an apocalyptic number.

26410370640 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 26410370640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43054530048).

26410370640 is an abundant number, since it is smaller than the sum of its proper divisors (59698689456).

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

26410370640 is a wasteful number, since it uses less digits than its factorization.

26410370640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67077 (or 67071 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 26410370640 in words is "twenty-six billion, four hundred ten million, three hundred seventy thousand, six hundred forty".