502316761981 has 8 divisors (see below), whose sum is σ = 517262473728. Its totient is φ = 487499340000.

The previous prime is 502316761979. The next prime is 502316761993. The reversal of 502316761981 is 189167613205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 502316761981 - 2¹ = 502316761979 is a prime.

It is a super-2 number, since 2×502316761981² (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 (502316761081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32064495 + ... + 32080156.

It is an arithmetic number, because the mean of its divisors is an integer number (64657809216).

Almost surely, 2^502316761981 is an apocalyptic number.

It is an amenable number.

502316761981 is a deficient number, since it is larger than the sum of its proper divisors (14945711747).

502316761981 is a wasteful number, since it uses less digits than its factorization.

502316761981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64144883.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 502316761981 in words is "five hundred two billion, three hundred sixteen million, seven hundred sixty-one thousand, nine hundred eighty-one".