10355481977 has 2 divisors, whose sum is σ = 10355481978. Its totient is φ = 10355481976.

The previous prime is 10355481959. The next prime is 10355482021. The reversal of 10355481977 is 77918455301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8438443321 + 1917038656 = 91861^2 + 43784^2 .

It is a cyclic number.

It is not a de Polignac number, because 10355481977 - 2¹⁰ = 10355480953 is a prime.

It is a super-3 number, since 3×10355481977³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (10355421977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5177740988 + 5177740989.

It is an arithmetic number, because the mean of its divisors is an integer number (5177740989).

Almost surely, 2^10355481977 is an apocalyptic number.

It is an amenable number.

10355481977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10355481977 is an equidigital number, since it uses as much as digits as its factorization.

10355481977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 10355481977 in words is "ten billion, three hundred fifty-five million, four hundred eighty-one thousand, nine hundred seventy-seven".