345161865877 has 4 divisors (see below), whose sum is σ = 345445484076. Its totient is φ = 344878247680.

The previous prime is 345161865863. The next prime is 345161865899. The reversal of 345161865877 is 778568161543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197741191761 + 147420674116 = 444681^2 + 383954^2 .

It is a cyclic number.

It is not a de Polignac number, because 345161865877 - 2¹¹ = 345161863829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345161865577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141807274 + ... + 141809707.

It is an arithmetic number, because the mean of its divisors is an integer number (86361371019).

Almost surely, 2^345161865877 is an apocalyptic number.

It is an amenable number.

345161865877 is a deficient number, since it is larger than the sum of its proper divisors (283618199).

345161865877 is a wasteful number, since it uses less digits than its factorization.

345161865877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283618198.

The product of its digits is 33868800, while the sum is 61.

The spelling of 345161865877 in words is "three hundred forty-five billion, one hundred sixty-one million, eight hundred sixty-five thousand, eight hundred seventy-seven".