26197353545 has 8 divisors (see below), whose sum is σ = 34294717440. Its totient is φ = 19052620720.

The previous prime is 26197353541. The next prime is 26197353569. The reversal of 26197353545 is 54535379162.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26197353545 - 2² = 26197353541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26197353493 and 26197353502.

It is not an unprimeable number, because it can be changed into a prime (26197353541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238157705 + ... + 238157814.

It is an arithmetic number, because the mean of its divisors is an integer number (4286839680).

Almost surely, 2^26197353545 is an apocalyptic number.

It is an amenable number.

26197353545 is a deficient number, since it is larger than the sum of its proper divisors (8097363895).

26197353545 is a wasteful number, since it uses less digits than its factorization.

26197353545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476315535.

The product of its digits is 3402000, while the sum is 50.

The spelling of 26197353545 in words is "twenty-six billion, one hundred ninety-seven million, three hundred fifty-three thousand, five hundred forty-five".