261535126623070 has 8 divisors (see below), whose sum is σ = 470763227921544. Its totient is φ = 104614050649224.

The previous prime is 261535126622981. The next prime is 261535126623103. The reversal of 261535126623070 is 70326621535162.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13076756331144 + ... + 13076756331163.

It is an arithmetic number, because the mean of its divisors is an integer number (58845403490193).

Almost surely, 2^{261535126623070} is an apocalyptic number.

261535126623070 is a deficient number, since it is larger than the sum of its proper divisors (209228101298474).

261535126623070 is a wasteful number, since it uses less digits than its factorization.

261535126623070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26153512662314.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 261535126623070 in words is "two hundred sixty-one trillion, five hundred thirty-five billion, one hundred twenty-six million, six hundred twenty-three thousand, seventy".