26351473540 has 48 divisors (see below), whose sum is σ = 66572150400. Its totient is φ = 8559274752.

The previous prime is 26351473537. The next prime is 26351473541. The reversal of 26351473540 is 4537415362.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26351473493 and 26351473502.

It is not an unprimeable number, because it can be changed into a prime (26351473541) 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, 4950625 + ... + 4955944.

It is an arithmetic number, because the mean of its divisors is an integer number (1386919800).

Almost surely, 2^26351473540 is an apocalyptic number.

26351473540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26351473540 is an abundant number, since it is smaller than the sum of its proper divisors (40220676860).

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

26351473540 is a wasteful number, since it uses less digits than its factorization.

26351473540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9906604 (or 9906602 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 26351473540 in words is "twenty-six billion, three hundred fifty-one million, four hundred seventy-three thousand, five hundred forty".