78851857162 has 8 divisors (see below), whose sum is σ = 127376076996. Its totient is φ = 36393164832.

The previous prime is 78851857151. The next prime is 78851857187. The reversal of 78851857162 is 26175815887.

It can be written as a sum of positive squares in 2 ways, for example, as 78752635641 + 99221521 = 280629^2 + 9961^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 78851857097 and 78851857106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516381843 + ... + 1516381894.

Almost surely, 2^78851857162 is an apocalyptic number.

78851857162 is a deficient number, since it is larger than the sum of its proper divisors (48524219834).

78851857162 is a wasteful number, since it uses less digits than its factorization.

78851857162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032763752.

The product of its digits is 7526400, while the sum is 58.

The spelling of 78851857162 in words is "seventy-eight billion, eight hundred fifty-one million, eight hundred fifty-seven thousand, one hundred sixty-two".