261246417465422 has 16 divisors (see below), whose sum is σ = 397338795576240. Its totient is φ = 128809875241728.

The previous prime is 261246417465401. The next prime is 261246417465437. The reversal of 261246417465422 is 224564714642162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2430688172 + ... + 2430795647.

It is an arithmetic number, because the mean of its divisors is an integer number (24833674723515).

Almost surely, 2^{261246417465422} is an apocalyptic number.

261246417465422 is a deficient number, since it is larger than the sum of its proper divisors (136092378110818).

261246417465422 is a wasteful number, since it uses less digits than its factorization.

261246417465422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861484195.

The product of its digits is 30965760, while the sum is 56.

The spelling of 261246417465422 in words is "two hundred sixty-one trillion, two hundred forty-six billion, four hundred seventeen million, four hundred sixty-five thousand, four hundred twenty-two".