510151004981 has 4 divisors (see below), whose sum is σ = 510167427552. Its totient is φ = 510134582412.

The previous prime is 510151004939. The next prime is 510151004989. The reversal of 510151004981 is 189400151015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-510151004981 is a prime.

It is a super-2 number, since 2×510151004981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510151004989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8164601 + ... + 8226846.

It is an arithmetic number, because the mean of its divisors is an integer number (127541856888).

Almost surely, 2^510151004981 is an apocalyptic number.

It is an amenable number.

510151004981 is a deficient number, since it is larger than the sum of its proper divisors (16422571).

510151004981 is a wasteful number, since it uses less digits than its factorization.

510151004981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16422570.

The product of its (nonzero) digits is 7200, while the sum is 35.

Adding to 510151004981 its reverse (189400151015), we get a palindrome (699551155996).

The spelling of 510151004981 in words is "five hundred ten billion, one hundred fifty-one million, four thousand, nine hundred eighty-one".