2620403623506 has 32 divisors (see below), whose sum is σ = 5653789849728. Its totient is φ = 806576326400.

The previous prime is 2620403623469. The next prime is 2620403623543. The reversal of 2620403623506 is 6053263040262.

It is an interprime number because it is at equal distance from previous prime (2620403623469) and next prime (2620403623543).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242355270 + ... + 242366081.

It is an arithmetic number, because the mean of its divisors is an integer number (176680932804).

Almost surely, 2^{2620403623506} is an apocalyptic number.

2620403623506 is an abundant number, since it is smaller than the sum of its proper divisors (3033386226222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2620403623506 is a wasteful number, since it uses less digits than its factorization.

2620403623506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484721426.

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 2620403623506 its reverse (6053263040262), we get a palindrome (8673666663768).

The spelling of 2620403623506 in words is "two trillion, six hundred twenty billion, four hundred three million, six hundred twenty-three thousand, five hundred six".