1540446694097 has 2 divisors, whose sum is σ = 1540446694098. Its totient is φ = 1540446694096.

The previous prime is 1540446694093. The next prime is 1540446694147. The reversal of 1540446694097 is 7904966440451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1223698351681 + 316748342416 = 1106209^2 + 562804^2 .

It is a cyclic number.

It is not a de Polignac number, because 1540446694097 - 2² = 1540446694093 is a prime.

It is not a weakly prime, because it can be changed into another prime (1540446694091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770223347048 + 770223347049.

It is an arithmetic number, because the mean of its divisors is an integer number (770223347049).

Almost surely, 2^{1540446694097} is an apocalyptic number.

It is an amenable number.

1540446694097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540446694097 is an equidigital number, since it uses as much as digits as its factorization.

1540446694097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 1540446694097 in words is "one trillion, five hundred forty billion, four hundred forty-six million, six hundred ninety-four thousand, ninety-seven".