1953485692073 has 4 divisors (see below), whose sum is σ = 1953732945348. Its totient is φ = 1953238438800.

The previous prime is 1953485692063. The next prime is 1953485692117. The reversal of 1953485692073 is 3702965843591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1417642659904 + 535843032169 = 1190648^2 + 732013^2 .

It is a cyclic number.

It is not a de Polignac number, because 1953485692073 - 2⁴ = 1953485692057 is a prime.

It is a super-2 number, since 2×1953485692073² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1953485691997 and 1953485692015.

It is not an unprimeable number, because it can be changed into a prime (1953485692043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123614786 + ... + 123630587.

It is an arithmetic number, because the mean of its divisors is an integer number (488433236337).

It is a 1-persistent number, because it is pandigital, but 2⋅1953485692073 = 3906971384146 is not.

Almost surely, 2^{1953485692073} is an apocalyptic number.

It is an amenable number.

1953485692073 is a deficient number, since it is larger than the sum of its proper divisors (247253275).

1953485692073 is an equidigital number, since it uses as much as digits as its factorization.

1953485692073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247253274.

The product of its (nonzero) digits is 48988800, while the sum is 62.

The spelling of 1953485692073 in words is "one trillion, nine hundred fifty-three billion, four hundred eighty-five million, six hundred ninety-two thousand, seventy-three".