1210745684953 has 16 divisors (see below), whose sum is σ = 1471234199040. Its totient is φ = 972649230336.

The previous prime is 1210745684921. The next prime is 1210745684959. The reversal of 1210745684953 is 3594865470121.

It is not a de Polignac number, because 1210745684953 - 2⁵ = 1210745684921 is a prime.

It is a super-2 number, since 2×1210745684953² (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 = 1210745684894 and 1210745684903.

It is not an unprimeable number, because it can be changed into a prime (1210745684959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21256776 + ... + 21313657.

It is an arithmetic number, because the mean of its divisors is an integer number (91952137440).

It is a 1-persistent number, because it is pandigital, but 2⋅1210745684953 = 2421491369906 is not.

Almost surely, 2^{1210745684953} is an apocalyptic number.

It is an amenable number.

1210745684953 is a deficient number, since it is larger than the sum of its proper divisors (260488514087).

1210745684953 is a wasteful number, since it uses less digits than its factorization.

1210745684953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42570696.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 1210745684953 in words is "one trillion, two hundred ten billion, seven hundred forty-five million, six hundred eighty-four thousand, nine hundred fifty-three".