78650793645 has 32 divisors (see below), whose sum is σ = 133230268800. Its totient is φ = 39509616384.

The previous prime is 78650793643. The next prime is 78650793659. The reversal of 78650793645 is 54639705687.

It is not a de Polignac number, because 78650793645 - 2¹ = 78650793643 is a prime.

It is a super-3 number, since 3×78650793645³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78650793643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 748290 + ... + 846899.

It is an arithmetic number, because the mean of its divisors is an integer number (4163445900).

Almost surely, 2^78650793645 is an apocalyptic number.

It is an amenable number.

78650793645 is a deficient number, since it is larger than the sum of its proper divisors (54579475155).

78650793645 is a wasteful number, since it uses less digits than its factorization.

78650793645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595389.

The product of its (nonzero) digits is 38102400, while the sum is 60.

The spelling of 78650793645 in words is "seventy-eight billion, six hundred fifty million, seven hundred ninety-three thousand, six hundred forty-five".