7977364231 has 2 divisors, whose sum is σ = 7977364232. Its totient is φ = 7977364230.

The previous prime is 7977364163. The next prime is 7977364237. The reversal of 7977364231 is 1324637797.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7977364231 - 2¹³ = 7977356039 is a prime.

It is a super-2 number, since 2×7977364231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7977364237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3988682115 + 3988682116.

It is an arithmetic number, because the mean of its divisors is an integer number (3988682116).

Almost surely, 2^7977364231 is an apocalyptic number.

7977364231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7977364231 is an equidigital number, since it uses as much as digits as its factorization.

7977364231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 49.

The square root of 7977364231 is about 89316.0916688589. The cubic root of 7977364231 is about 1998.1119040244. Note that the first 3 decimals are identical.

The spelling of 7977364231 in words is "seven billion, nine hundred seventy-seven million, three hundred sixty-four thousand, two hundred thirty-one".