78250110105850 has 12 divisors (see below), whose sum is σ = 145545204796974. Its totient is φ = 31300044042320.

The previous prime is 78250110105841. The next prime is 78250110105851. The reversal of 78250110105850 is 5850101105287.

It can be written as a sum of positive squares in 3 ways, for example, as 74638662160689 + 3611447945161 = 8639367^2 + 1900381^2 .

It is a super-2 number, since 2×78250110105850² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78250110105797 and 78250110105806.

It is not an unprimeable number, because it can be changed into a prime (78250110105851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 782501101009 + ... + 782501101108.

Almost surely, 2^{78250110105850} is an apocalyptic number.

78250110105850 is a deficient number, since it is larger than the sum of its proper divisors (67295094691124).

78250110105850 is a wasteful number, since it uses less digits than its factorization.

78250110105850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565002202129 (or 1565002202124 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 43.

The spelling of 78250110105850 in words is "seventy-eight trillion, two hundred fifty billion, one hundred ten million, one hundred five thousand, eight hundred fifty".