23543546474451 has 16 divisors (see below), whose sum is σ = 32060497250304. Its totient is φ = 15361171672704.

The previous prime is 23543546474417. The next prime is 23543546474489. The reversal of 23543546474451 is 15447464534532.

It is a happy number.

It is not a de Polignac number, because 23543546474451 - 2¹⁴ = 23543546458067 is a prime.

It is a super-2 number, since 2×23543546474451² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23543546474391 and 23543546474400.

It is not an unprimeable number, because it can be changed into a prime (23543546474401) 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, 672070 + ... + 6894836.

It is an arithmetic number, because the mean of its divisors is an integer number (2003781078144).

Almost surely, 2^{23543546474451} is an apocalyptic number.

23543546474451 is a deficient number, since it is larger than the sum of its proper divisors (8516950775853).

23543546474451 is a wasteful number, since it uses less digits than its factorization.

23543546474451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249650.

The product of its digits is 96768000, while the sum is 57.

The spelling of 23543546474451 in words is "twenty-three trillion, five hundred forty-three billion, five hundred forty-six million, four hundred seventy-four thousand, four hundred fifty-one".