261770712405364 has 12 divisors (see below), whose sum is σ = 458118385006464. Its totient is φ = 130879745260664.

The previous prime is 261770712405343. The next prime is 261770712405421. The reversal of 261770712405364 is 463504217077162.

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, 1402630534 + ... + 1402817149.

It is an arithmetic number, because the mean of its divisors is an integer number (38176532083872).

Almost surely, 2^{261770712405364} is an apocalyptic number.

It is an amenable number.

261770712405364 is a deficient number, since it is larger than the sum of its proper divisors (196347672601100).

261770712405364 is a wasteful number, since it uses less digits than its factorization.

261770712405364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805471014 (or 2805471012 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 55.

The spelling of 261770712405364 in words is "two hundred sixty-one trillion, seven hundred seventy billion, seven hundred twelve million, four hundred five thousand, three hundred sixty-four".