26294633540 has 48 divisors (see below), whose sum is σ = 63149393664. Its totient is φ = 9009264000.

The previous prime is 26294633537. The next prime is 26294633543. The reversal of 26294633540 is 4533649262.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26294633537) and next prime (26294633543).

It is a junction number, because it is equal to n+sod(n) for n = 26294633491 and 26294633500.

It is not an unprimeable number, because it can be changed into a prime (26294633543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149390 + ... + 273690.

It is an arithmetic number, because the mean of its divisors is an integer number (1315612368).

Almost surely, 2^26294633540 is an apocalyptic number.

26294633540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26294633540 is an abundant number, since it is smaller than the sum of its proper divisors (36854760124).

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

26294633540 is a wasteful number, since it uses less digits than its factorization.

26294633540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125828 (or 125826 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 26294633540 in words is "twenty-six billion, two hundred ninety-four million, six hundred thirty-three thousand, five hundred forty".