1853740761049 has 2 divisors, whose sum is σ = 1853740761050. Its totient is φ = 1853740761048.

The previous prime is 1853740760999. The next prime is 1853740761113. The reversal of 1853740761049 is 9401670473581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1820340640000 + 33400121049 = 1349200^2 + 182757^2 .

It is a cyclic number.

It is not a de Polignac number, because 1853740761049 - 2²³ = 1853732372441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1853740761749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926870380524 + 926870380525.

It is an arithmetic number, because the mean of its divisors is an integer number (926870380525).

Almost surely, 2^{1853740761049} is an apocalyptic number.

It is an amenable number.

1853740761049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1853740761049 is an equidigital number, since it uses as much as digits as its factorization.

1853740761049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 1853740761049 in words is "one trillion, eight hundred fifty-three billion, seven hundred forty million, seven hundred sixty-one thousand, forty-nine".