624664310562109 has 4 divisors (see below), whose sum is σ = 624770527930780. Its totient is φ = 624558093193440.

The previous prime is 624664310562101. The next prime is 624664310562113. The reversal of 624664310562109 is 901265013466426.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 491322556645209 + 133341753916900 = 22165797^2 + 11547370^2 .

It is a cyclic number.

It is not a de Polignac number, because 624664310562109 - 2³ = 624664310562101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 624664310562109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624664310562101) 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, 53108675514 + ... + 53108687275.

It is an arithmetic number, because the mean of its divisors is an integer number (156192631982695).

Almost surely, 2^{624664310562109} is an apocalyptic number.

It is an amenable number.

624664310562109 is a deficient number, since it is larger than the sum of its proper divisors (106217368671).

624664310562109 is a wasteful number, since it uses less digits than its factorization.

624664310562109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106217368670.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 624664310562109 in words is "six hundred twenty-four trillion, six hundred sixty-four billion, three hundred ten million, five hundred sixty-two thousand, one hundred nine".