261270696959 has 8 divisors (see below), whose sum is σ = 277067145888. Its totient is φ = 245521757440.

The previous prime is 261270696949. The next prime is 261270696961. The reversal of 261270696959 is 959696072162.

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

It is not a de Polignac number, because 261270696959 - 2³² = 256975729663 is a prime.

It is a super-2 number, since 2×261270696959² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261270696949) 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, 11866022 + ... + 11888019.

It is an arithmetic number, because the mean of its divisors is an integer number (34633393236).

Almost surely, 2^261270696959 is an apocalyptic number.

261270696959 is a deficient number, since it is larger than the sum of its proper divisors (15796448929).

261270696959 is a wasteful number, since it uses less digits than its factorization.

261270696959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23754705.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 261270696959 in words is "two hundred sixty-one billion, two hundred seventy million, six hundred ninety-six thousand, nine hundred fifty-nine".