618416380313952 has 96 divisors (see below), whose sum is σ = 1770932162643840. Its totient is φ = 187397577400320.

The previous prime is 618416380313939. The next prime is 618416380313959. The reversal of 618416380313952 is 259313083614816.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×618416380313952² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618416380313959) by changing a digit.

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, 152747008 + ... + 156743360.

It is an arithmetic number, because the mean of its divisors is an integer number (18447210027540).

Almost surely, 2^{618416380313952} is an apocalyptic number.

It is an amenable number.

618416380313952 is an abundant number, since it is smaller than the sum of its proper divisors (1152515782329888).

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

618416380313952 is a wasteful number, since it uses less digits than its factorization.

618416380313952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142916 (or 4142908 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 618416380313952 in words is "six hundred eighteen trillion, four hundred sixteen billion, three hundred eighty million, three hundred thirteen thousand, nine hundred fifty-two".