21374358002 has 4 divisors (see below), whose sum is σ = 32061537006. Its totient is φ = 10687179000.

The previous prime is 21374358001. The next prime is 21374358037. The reversal of 21374358002 is 20085347312.

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

It can be written as a sum of positive squares in only one way, i.e., 20243313841 + 1131044161 = 142279^2 + 33631^2 .

It is a super-2 number, since 2×21374358002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21374358001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5343589499 + ... + 5343589502.

Almost surely, 2^21374358002 is an apocalyptic number.

21374358002 is a deficient number, since it is larger than the sum of its proper divisors (10687179004).

21374358002 is a wasteful number, since it uses less digits than its factorization.

21374358002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10687179003.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 21374358002 in words is "twenty-one billion, three hundred seventy-four million, three hundred fifty-eight thousand, two".