21314532374 has 32 divisors (see below), whose sum is σ = 34449367392. Its totient is φ = 9855040000.

The previous prime is 21314532373. The next prime is 21314532401. The reversal of 21314532374 is 47323541312.

21314532374 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314532373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426164 + ... + 473544.

It is an arithmetic number, because the mean of its divisors is an integer number (1076542731).

Almost surely, 2^21314532374 is an apocalyptic number.

21314532374 is a deficient number, since it is larger than the sum of its proper divisors (13134835018).

21314532374 is a wasteful number, since it uses less digits than its factorization.

21314532374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47632.

The product of its digits is 60480, while the sum is 35.

The spelling of 21314532374 in words is "twenty-one billion, three hundred fourteen million, five hundred thirty-two thousand, three hundred seventy-four".