23421540743470 has 16 divisors (see below), whose sum is σ = 43518733769088. Its totient is φ = 9066402868320.

The previous prime is 23421540743443. The next prime is 23421540743479. The reversal of 23421540743470 is 7434704512432.

It is a self number, because there is not a number n which added to its sum of digits gives 23421540743470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23421540743479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37776678309 + ... + 37776678928.

It is an arithmetic number, because the mean of its divisors is an integer number (2719920860568).

Almost surely, 2^{23421540743470} is an apocalyptic number.

23421540743470 is a deficient number, since it is larger than the sum of its proper divisors (20097193025618).

23421540743470 is a wasteful number, since it uses less digits than its factorization.

23421540743470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75553357275.

The product of its (nonzero) digits is 2257920, while the sum is 46.

The spelling of 23421540743470 in words is "twenty-three trillion, four hundred twenty-one billion, five hundred forty million, seven hundred forty-three thousand, four hundred seventy".