78430450036 has 12 divisors (see below), whose sum is σ = 139842972612. Its totient is φ = 38475315008.

The previous prime is 78430450031. The next prime is 78430450039. The reversal of 78430450036 is 63005403487.

It can be written as a sum of positive squares in 2 ways, for example, as 55932250000 + 22498200036 = 236500^2 + 149994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78430450031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184977265 + ... + 184977688.

It is an arithmetic number, because the mean of its divisors is an integer number (11653581051).

Almost surely, 2^78430450036 is an apocalyptic number.

It is an amenable number.

78430450036 is a deficient number, since it is larger than the sum of its proper divisors (61412522576).

78430450036 is a wasteful number, since it uses less digits than its factorization.

78430450036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369955010 (or 369955008 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 78430450036 in words is "seventy-eight billion, four hundred thirty million, four hundred fifty thousand, thirty-six".