626240013563 has 4 divisors (see below), whose sum is σ = 626241713448. Its totient is φ = 626238313680.

The previous prime is 626240013517. The next prime is 626240013613. The reversal of 626240013563 is 365310042626.

It is a happy number.

626240013563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 626240013563 - 2¹² = 626240009467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626240013863) 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, 40178 + ... + 1119863.

It is an arithmetic number, because the mean of its divisors is an integer number (156560428362).

Almost surely, 2^626240013563 is an apocalyptic number.

626240013563 is a deficient number, since it is larger than the sum of its proper divisors (1699885).

626240013563 is a wasteful number, since it uses less digits than its factorization.

626240013563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699884.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 626240013563 in words is "six hundred twenty-six billion, two hundred forty million, thirteen thousand, five hundred sixty-three".