26457331740 has 192 divisors, whose sum is σ = 87336797184. Its totient is φ = 5857892352.

The previous prime is 26457331723. The next prime is 26457331751. The reversal of 26457331740 is 4713375462.

It is a super-2 number, since 2×26457331740² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 26457331692 and 26457331701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3617167 + ... + 3624473.

It is an arithmetic number, because the mean of its divisors is an integer number (454879152).

Almost surely, 2^26457331740 is an apocalyptic number.

26457331740 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 26457331740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43668398592).

26457331740 is an abundant number, since it is smaller than the sum of its proper divisors (60879465444).

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

26457331740 is a wasteful number, since it uses less digits than its factorization.

26457331740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596 (or 7594 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 26457331740 in words is "twenty-six billion, four hundred fifty-seven million, three hundred thirty-one thousand, seven hundred forty".