345368993781 has 32 divisors (see below), whose sum is σ = 540392785920. Its totient is φ = 192125081664.

The previous prime is 345368993741. The next prime is 345368993803. The reversal of 345368993781 is 187399863543.

It is not a de Polignac number, because 345368993781 - 2¹⁰ = 345368992757 is a prime.

It is a super-2 number, since 2×345368993781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345368993741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1225530 + ... + 1480763.

It is an arithmetic number, because the mean of its divisors is an integer number (16887274560).

Almost surely, 2^345368993781 is an apocalyptic number.

It is an amenable number.

345368993781 is a deficient number, since it is larger than the sum of its proper divisors (195023792139).

345368993781 is a wasteful number, since it uses less digits than its factorization.

345368993781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706465.

The product of its digits is 117573120, while the sum is 66.

The spelling of 345368993781 in words is "three hundred forty-five billion, three hundred sixty-eight million, nine hundred ninety-three thousand, seven hundred eighty-one".