2653551405123 has 16 divisors (see below), whose sum is σ = 3557877446016. Its totient is φ = 1759137431040.

The previous prime is 2653551405121. The next prime is 2653551405137. The reversal of 2653551405123 is 3215041553562.

It is not a de Polignac number, because 2653551405123 - 2¹ = 2653551405121 is a prime.

It is a super-3 number, since 3×2653551405123³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2653551405121) 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, 445536 + ... + 2346402.

It is an arithmetic number, because the mean of its divisors is an integer number (222367340376).

Almost surely, 2^{2653551405123} is an apocalyptic number.

2653551405123 is a deficient number, since it is larger than the sum of its proper divisors (904326040893).

2653551405123 is a wasteful number, since it uses less digits than its factorization.

2653551405123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903474.

The product of its (nonzero) digits is 540000, while the sum is 42.

Adding to 2653551405123 its reverse (3215041553562), we get a palindrome (5868592958685).

The spelling of 2653551405123 in words is "two trillion, six hundred fifty-three billion, five hundred fifty-one million, four hundred five thousand, one hundred twenty-three".