1011905472973 has 2 divisors, whose sum is σ = 1011905472974. Its totient is φ = 1011905472972.

The previous prime is 1011905472943. The next prime is 1011905473079. The reversal of 1011905472973 is 3792745091101.

1011905472973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 826939247044 + 184966225929 = 909362^2 + 430077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011905472973 - 2³⁷ = 874466519501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011905472943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505952736486 + 505952736487.

It is an arithmetic number, because the mean of its divisors is an integer number (505952736487).

Almost surely, 2^{1011905472973} is an apocalyptic number.

It is an amenable number.

1011905472973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011905472973 is an equidigital number, since it uses as much as digits as its factorization.

1011905472973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 1011905472973 in words is "one trillion, eleven billion, nine hundred five million, four hundred seventy-two thousand, nine hundred seventy-three".