261107847357 has 16 divisors (see below), whose sum is σ = 402672345600. Its totient is φ = 147406838832.

The previous prime is 261107847353. The next prime is 261107847359. The reversal of 261107847357 is 753748701162.

It is not a de Polignac number, because 261107847357 - 2² = 261107847353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261107847353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74900107 + ... + 74903592.

It is an arithmetic number, because the mean of its divisors is an integer number (25167021600).

Almost surely, 2^261107847357 is an apocalyptic number.

It is an amenable number.

261107847357 is a deficient number, since it is larger than the sum of its proper divisors (141564498243).

261107847357 is a wasteful number, since it uses less digits than its factorization.

261107847357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149803792.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 261107847357 in words is "two hundred sixty-one billion, one hundred seven million, eight hundred forty-seven thousand, three hundred fifty-seven".