34345621243 has 8 divisors (see below), whose sum is σ = 35579390400. Its totient is φ = 33115147968.

The previous prime is 34345621229. The next prime is 34345621249. The reversal of 34345621243 is 34212654343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34345621243 - 2¹⁷ = 34345490171 is a prime.

It is a super-2 number, since 2×34345621243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34345621249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802746 + ... + 844447.

It is an arithmetic number, because the mean of its divisors is an integer number (4447423800).

Almost surely, 2^34345621243 is an apocalyptic number.

34345621243 is a deficient number, since it is larger than the sum of its proper divisors (1233769157).

34345621243 is a wasteful number, since it uses less digits than its factorization.

34345621243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647941.

The product of its digits is 207360, while the sum is 37.

The spelling of 34345621243 in words is "thirty-four billion, three hundred forty-five million, six hundred twenty-one thousand, two hundred forty-three".