814477214977 has 2 divisors, whose sum is σ = 814477214978. Its totient is φ = 814477214976.

The previous prime is 814477214963. The next prime is 814477215043. The reversal of 814477214977 is 779412774418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 814369075776 + 108139201 = 902424^2 + 10399^2 .

It is a cyclic number.

It is not a de Polignac number, because 814477214977 - 2¹⁵ = 814477182209 is a prime.

It is a super-2 number, since 2×814477214977² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (814477214927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407238607488 + 407238607489.

It is an arithmetic number, because the mean of its divisors is an integer number (407238607489).

Almost surely, 2^814477214977 is an apocalyptic number.

It is an amenable number.

814477214977 is a deficient number, since it is larger than the sum of its proper divisors (1).

814477214977 is an equidigital number, since it uses as much as digits as its factorization.

814477214977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22127616, while the sum is 61.

The spelling of 814477214977 in words is "eight hundred fourteen billion, four hundred seventy-seven million, two hundred fourteen thousand, nine hundred seventy-seven".