78827533373 has 2 divisors, whose sum is σ = 78827533374. Its totient is φ = 78827533372.

The previous prime is 78827533361. The next prime is 78827533391. The reversal of 78827533373 is 37333572887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78818878009 + 8655364 = 280747^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 78827533373 - 2⁸ = 78827533117 is a prime.

It is a super-4 number, since 4×78827533373⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78827533073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39413766686 + 39413766687.

It is an arithmetic number, because the mean of its divisors is an integer number (39413766687).

Almost surely, 2^78827533373 is an apocalyptic number.

It is an amenable number.

78827533373 is a deficient number, since it is larger than the sum of its proper divisors (1).

78827533373 is an equidigital number, since it uses as much as digits as its factorization.

78827533373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17781120, while the sum is 56.

The spelling of 78827533373 in words is "seventy-eight billion, eight hundred twenty-seven million, five hundred thirty-three thousand, three hundred seventy-three".