1000001977433 has 2 divisors, whose sum is σ = 1000001977434. Its totient is φ = 1000001977432.

The previous prime is 1000001977409. The next prime is 1000001977451. The reversal of 1000001977433 is 3347791000001.

1000001977433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 825384969049 + 174617008384 = 908507^2 + 417872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000001977433 - 2¹⁶ = 1000001911897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000001977393 and 1000001977402.

It is not a weakly prime, because it can be changed into another prime (1000001977333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000988716 + 500000988717.

It is an arithmetic number, because the mean of its divisors is an integer number (500000988717).

Almost surely, 2^{1000001977433} is an apocalyptic number.

It is an amenable number.

1000001977433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001977433 is an equidigital number, since it uses as much as digits as its factorization.

1000001977433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

Adding to 1000001977433 its reverse (3347791000001), we get a palindrome (4347792977434).

The spelling of 1000001977433 in words is "one trillion, one million, nine hundred seventy-seven thousand, four hundred thirty-three".