26415493420 has 12 divisors (see below), whose sum is σ = 55472536224. Its totient is φ = 10566197360.

The previous prime is 26415493417. The next prime is 26415493471. The reversal of 26415493420 is 2439451462.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 660387316 + ... + 660387355.

It is an arithmetic number, because the mean of its divisors is an integer number (4622711352).

Almost surely, 2^26415493420 is an apocalyptic number.

26415493420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26415493420 is an abundant number, since it is smaller than the sum of its proper divisors (29057042804).

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

26415493420 is a wasteful number, since it uses less digits than its factorization.

26415493420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320774680 (or 1320774678 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 26415493420 in words is "twenty-six billion, four hundred fifteen million, four hundred ninety-three thousand, four hundred twenty".