653000321869 has 12 divisors (see below), whose sum is σ = 766581548700. Its totient is φ = 554579561088.

The previous prime is 653000321851. The next prime is 653000321881. The reversal of 653000321869 is 968123000356.

It can be written as a sum of positive squares in 2 ways, for example, as 385647210025 + 267353111844 = 621005^2 + 517062^2 .

It is not a de Polignac number, because 653000321869 - 2¹¹ = 653000319821 is a prime.

It is a super-2 number, since 2×653000321869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653000321819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61125564 + ... + 61136245.

It is an arithmetic number, because the mean of its divisors is an integer number (63881795725).

Almost surely, 2^653000321869 is an apocalyptic number.

It is an amenable number.

653000321869 is a deficient number, since it is larger than the sum of its proper divisors (113581226831).

653000321869 is a wasteful number, since it uses less digits than its factorization.

653000321869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122261932 (or 122261925 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 653000321869 in words is "six hundred fifty-three billion, three hundred twenty-one thousand, eight hundred sixty-nine".