26443773040 has 20 divisors (see below), whose sum is σ = 61481772504. Its totient is φ = 10577509184.

The previous prime is 26443773029. The next prime is 26443773061. The reversal of 26443773040 is 4037734462.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 26443772984 and 26443773002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165273502 + ... + 165273661.

Almost surely, 2^26443773040 is an apocalyptic number.

26443773040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26443773040 is an abundant number, since it is smaller than the sum of its proper divisors (35037999464).

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

26443773040 is a wasteful number, since it uses less digits than its factorization.

26443773040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330547176 (or 330547170 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 40.

The spelling of 26443773040 in words is "twenty-six billion, four hundred forty-three million, seven hundred seventy-three thousand, forty".