261534370466270 has 64 divisors (see below), whose sum is σ = 567409792628736. Its totient is φ = 85617389806080.

The previous prime is 261534370466227. The next prime is 261534370466323. The reversal of 261534370466270 is 72664073435162.

It is a super-3 number, since 3×261534370466270³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3040347254 + ... + 3040433273.

It is an arithmetic number, because the mean of its divisors is an integer number (8865778009824).

Almost surely, 2^{261534370466270} is an apocalyptic number.

261534370466270 is an abundant number, since it is smaller than the sum of its proper divisors (305875422162466).

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

261534370466270 is a wasteful number, since it uses less digits than its factorization.

261534370466270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080780585.

The product of its (nonzero) digits is 30481920, while the sum is 56.

The spelling of 261534370466270 in words is "two hundred sixty-one trillion, five hundred thirty-four billion, three hundred seventy million, four hundred sixty-six thousand, two hundred seventy".