3505651406623 has 4 divisors (see below), whose sum is σ = 3505686911608. Its totient is φ = 3505615901640.

The previous prime is 3505651406617. The next prime is 3505651406681. The reversal of 3505651406623 is 3266041565053.

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 3505651406623 - 2⁹ = 3505651406111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3505651406603) 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, 17603973 + ... + 17801998.

It is an arithmetic number, because the mean of its divisors is an integer number (876421727902).

Almost surely, 2^{3505651406623} is an apocalyptic number.

3505651406623 is a deficient number, since it is larger than the sum of its proper divisors (35504985).

3505651406623 is an equidigital number, since it uses as much as digits as its factorization.

3505651406623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35504984.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 3505651406623 in words is "three trillion, five hundred five billion, six hundred fifty-one million, four hundred six thousand, six hundred twenty-three".