347686216545 has 64 divisors (see below), whose sum is σ = 626415310080. Its totient is φ = 163634577408.

The previous prime is 347686216513. The next prime is 347686216561. The reversal of 347686216545 is 545612686743.

347686216545 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 347686216545 - 2⁵ = 347686216513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 100059 + ... + 839871.

It is an arithmetic number, because the mean of its divisors is an integer number (9787739220).

Almost surely, 2^347686216545 is an apocalyptic number.

It is an amenable number.

347686216545 is a deficient number, since it is larger than the sum of its proper divisors (278729093535).

347686216545 is a wasteful number, since it uses less digits than its factorization.

347686216545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739954.

The product of its digits is 29030400, while the sum is 57.

The spelling of 347686216545 in words is "three hundred forty-seven billion, six hundred eighty-six million, two hundred sixteen thousand, five hundred forty-five".