345184256747 has 4 divisors (see below), whose sum is σ = 376564643736. Its totient is φ = 313803869760.

The previous prime is 345184256731. The next prime is 345184256771. The reversal of 345184256747 is 747652481543.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 345184256747 - 2⁴ = 345184256731 is a prime.

It is a super-2 number, since 2×345184256747² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345184256692 and 345184256701.

It is not an unprimeable number, because it can be changed into a prime (345184256707) 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, 15690193478 + ... + 15690193499.

It is an arithmetic number, because the mean of its divisors is an integer number (94141160934).

Almost surely, 2^345184256747 is an apocalyptic number.

345184256747 is a deficient number, since it is larger than the sum of its proper divisors (31380386989).

345184256747 is a wasteful number, since it uses less digits than its factorization.

345184256747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31380386988.

The product of its digits is 22579200, while the sum is 56.

The spelling of 345184256747 in words is "three hundred forty-five billion, one hundred eighty-four million, two hundred fifty-six thousand, seven hundred forty-seven".