21374326146471 has 16 divisors (see below), whose sum is σ = 28606766043648. Its totient is φ = 14195727705600.

The previous prime is 21374326146409. The next prime is 21374326146499. The reversal of 21374326146471 is 17464162347312.

It is not a de Polignac number, because 21374326146471 - 2²¹ = 21374324049319 is a prime.

It is a super-3 number, since 3×21374326146471³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21374326146671) 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, 8198215 + ... + 10486151.

It is an arithmetic number, because the mean of its divisors is an integer number (1787922877728).

Almost surely, 2^{21374326146471} is an apocalyptic number.

21374326146471 is a deficient number, since it is larger than the sum of its proper divisors (7232439897177).

21374326146471 is a wasteful number, since it uses less digits than its factorization.

21374326146471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299702.

The product of its digits is 4064256, while the sum is 51.

The spelling of 21374326146471 in words is "twenty-one trillion, three hundred seventy-four billion, three hundred twenty-six million, one hundred forty-six thousand, four hundred seventy-one".