261422571707010 has 128 divisors (see below), whose sum is σ = 831356253020160. Its totient is φ = 57155742376128.

The previous prime is 261422571706969. The next prime is 261422571707027. The reversal of 261422571707010 is 10707175224162.

It is a happy number.

261422571707010 is a `hidden beast` number, since 2 + 6 + 1 + 4 + 2 + 2 + 571 + 7 + 0 + 70 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3006887422 + ... + 3006974361.

It is an arithmetic number, because the mean of its divisors is an integer number (6494970726720).

Almost surely, 2^{261422571707010} is an apocalyptic number.

261422571707010 is an abundant number, since it is smaller than the sum of its proper divisors (569933681313150).

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

261422571707010 is a wasteful number, since it uses less digits than its factorization.

261422571707010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013861829 (or 6013861823 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 261422571707010 in words is "two hundred sixty-one trillion, four hundred twenty-two billion, five hundred seventy-one million, seven hundred seven thousand, ten".