162438857653 has 4 divisors (see below), whose sum is σ = 162444179008. Its totient is φ = 162433536300.

The previous prime is 162438857627. The next prime is 162438857687. The reversal of 162438857653 is 356758834261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 162438857653 - 2¹⁷ = 162438726581 is a prime.

It is a super-2 number, since 2×162438857653² (a number of 23 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 (162438857753) 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, 2614623 + ... + 2676028.

It is an arithmetic number, because the mean of its divisors is an integer number (40611044752).

Almost surely, 2^162438857653 is an apocalyptic number.

It is an amenable number.

162438857653 is a deficient number, since it is larger than the sum of its proper divisors (5321355).

162438857653 is an equidigital number, since it uses as much as digits as its factorization.

162438857653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321354.

The product of its digits is 29030400, while the sum is 58.

The spelling of 162438857653 in words is "one hundred sixty-two billion, four hundred thirty-eight million, eight hundred fifty-seven thousand, six hundred fifty-three".