345072738261 has 16 divisors (see below), whose sum is σ = 469129881600. Its totient is φ = 225552621168.

The previous prime is 345072738253. The next prime is 345072738301. The reversal of 345072738261 is 162837270543.

It is not a de Polignac number, because 345072738261 - 2³ = 345072738253 is a prime.

It is a super-2 number, since 2×345072738261² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345072738261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345072738211) 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, 2504901 + ... + 2639066.

It is an arithmetic number, because the mean of its divisors is an integer number (29320617600).

Almost surely, 2^345072738261 is an apocalyptic number.

It is an amenable number.

345072738261 is a deficient number, since it is larger than the sum of its proper divisors (124057143339).

345072738261 is a wasteful number, since it uses less digits than its factorization.

345072738261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144408.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 345072738261 in words is "three hundred forty-five billion, seventy-two million, seven hundred thirty-eight thousand, two hundred sixty-one".