78266327040 has 336 divisors, whose sum is σ = 295986287376. Its totient is φ = 18972672000.

The previous prime is 78266327033. The next prime is 78266327077. The reversal of 78266327040 is 4072366287.

78266327040 is a `hidden beast` number, since 7 + 8 + 2 + 6 + 632 + 7 + 0 + 4 + 0 = 666.

It is a super-2 number, since 2×78266327040² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4045390 + ... + 4064690.

Almost surely, 2^78266327040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78266327040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147993143688).

78266327040 is an abundant number, since it is smaller than the sum of its proper divisors (217719960336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78266327040 is a wasteful number, since it uses less digits than its factorization.

78266327040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19349 (or 19322 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 78266327040 in words is "seventy-eight billion, two hundred sixty-six million, three hundred twenty-seven thousand, forty".