26026400540 has 48 divisors (see below), whose sum is σ = 62640430272.
Its totient is φ = 8898041856.
The previous prime is 26026400539. The next prime is 26026400549. The reversal of 26026400540 is 4500462062.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (26026400549) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213899 + ... + 312738.
It is an arithmetic number, because the mean of its divisors is an integer number (1305008964).
Almost surely, 226026400540 is an apocalyptic number.
26026400540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
26026400540 is an abundant number, since it is smaller than the sum of its proper divisors (36614029732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
26026400540 is a wasteful number, since it uses less digits than its factorization.
26026400540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 527006 (or 527004 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 29.
The spelling of 26026400540 in words is "twenty-six billion, twenty-six million, four hundred thousand, five hundred forty".