24100139406421 has 4 divisors (see below), whose sum is σ = 25953996283852. Its totient is φ = 22246282528992.

The previous prime is 24100139406403. The next prime is 24100139406443. The reversal of 24100139406421 is 12460493100142.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3947572922500 + 20152566483921 = 1986850^2 + 4489161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24100139406421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24100139406121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926928438696 + ... + 926928438721.

It is an arithmetic number, because the mean of its divisors is an integer number (6488499070963).

Almost surely, 2^{24100139406421} is an apocalyptic number.

It is an amenable number.

24100139406421 is a deficient number, since it is larger than the sum of its proper divisors (1853856877431).

24100139406421 is a wasteful number, since it uses less digits than its factorization.

24100139406421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853856877430.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 24100139406421 in words is "twenty-four trillion, one hundred billion, one hundred thirty-nine million, four hundred six thousand, four hundred twenty-one".