73827976777 has 2 divisors, whose sum is σ = 73827976778. Its totient is φ = 73827976776.

The previous prime is 73827976727. The next prime is 73827976843. The reversal of 73827976777 is 77767972837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73196761401 + 631215376 = 270549^2 + 25124^2 .

It is a cyclic number.

It is not a de Polignac number, because 73827976777 - 2¹⁵ = 73827944009 is a prime.

It is not a weakly prime, because it can be changed into another prime (73827976727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36913988388 + 36913988389.

It is an arithmetic number, because the mean of its divisors is an integer number (36913988389).

Almost surely, 2^73827976777 is an apocalyptic number.

It is an amenable number.

73827976777 is a deficient number, since it is larger than the sum of its proper divisors (1).

73827976777 is an equidigital number, since it uses as much as digits as its factorization.

73827976777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 304946208, while the sum is 70.

The spelling of 73827976777 in words is "seventy-three billion, eight hundred twenty-seven million, nine hundred seventy-six thousand, seven hundred seventy-seven".