78357486658102 has 16 divisors (see below), whose sum is σ = 117665639942400. Its totient is φ = 39135607776360.

The previous prime is 78357486658043. The next prime is 78357486658141. The reversal of 78357486658102 is 20185668475387.

It is a super-2 number, since 2×78357486658102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 172028077 + ... + 172482967.

It is an arithmetic number, because the mean of its divisors is an integer number (7354102496400).

Almost surely, 2^{78357486658102} is an apocalyptic number.

78357486658102 is a deficient number, since it is larger than the sum of its proper divisors (39308153284298).

78357486658102 is a wasteful number, since it uses less digits than its factorization.

78357486658102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549531.

The product of its (nonzero) digits is 541900800, while the sum is 70.

The spelling of 78357486658102 in words is "seventy-eight trillion, three hundred fifty-seven billion, four hundred eighty-six million, six hundred fifty-eight thousand, one hundred two".