246121890977 has 2 divisors, whose sum is σ = 246121890978. Its totient is φ = 246121890976.

The previous prime is 246121890943. The next prime is 246121890979. The reversal of 246121890977 is 779098121642.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239606334016 + 6515556961 = 489496^2 + 80719^2 .

It is a cyclic number.

It is not a de Polignac number, because 246121890977 - 2¹⁸ = 246121628833 is a prime.

Together with 246121890979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (246121890979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123060945488 + 123060945489.

It is an arithmetic number, because the mean of its divisors is an integer number (123060945489).

Almost surely, 2^246121890977 is an apocalyptic number.

It is an amenable number.

246121890977 is a deficient number, since it is larger than the sum of its proper divisors (1).

246121890977 is an equidigital number, since it uses as much as digits as its factorization.

246121890977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 246121890977 in words is "two hundred forty-six billion, one hundred twenty-one million, eight hundred ninety thousand, nine hundred seventy-seven".