26720274240 has 168 divisors, whose sum is σ = 100261875168. Its totient is φ = 6477634560.

The previous prime is 26720274227. The next prime is 26720274241. The reversal of 26720274240 is 4247202762.

26720274240 is a `hidden beast` number, since 26 + 7 + 202 + 7 + 424 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 26720274195 and 26720274204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26720274241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390042 + ... + 453401.

It is an arithmetic number, because the mean of its divisors is an integer number (596796876).

Almost surely, 2^26720274240 is an apocalyptic number.

26720274240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26720274240 is an abundant number, since it is smaller than the sum of its proper divisors (73541600928).

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

26720274240 is a wasteful number, since it uses less digits than its factorization.

26720274240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843477 (or 843464 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The spelling of 26720274240 in words is "twenty-six billion, seven hundred twenty million, two hundred seventy-four thousand, two hundred forty".