21472630335370 has 16 divisors (see below), whose sum is σ = 38864274577128. Its totient is φ = 8541598806720.

The previous prime is 21472630335347. The next prime is 21472630335379. The reversal of 21472630335370 is 7353303627412.

It can be written as a sum of positive squares in 4 ways, for example, as 13615826941369 + 7856803394001 = 3689963^2 + 2802999^2 .

It is a super-2 number, since 2×21472630335370² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21472630335370.

It is not an unprimeable number, because it can be changed into a prime (21472630335379) 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, 5931664029 + ... + 5931667648.

Almost surely, 2^{21472630335370} is an apocalyptic number.

21472630335370 is a deficient number, since it is larger than the sum of its proper divisors (17391644241758).

21472630335370 is a wasteful number, since it uses less digits than its factorization.

21472630335370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11863331865.

The product of its (nonzero) digits is 1905120, while the sum is 46.

The spelling of 21472630335370 in words is "twenty-one trillion, four hundred seventy-two billion, six hundred thirty million, three hundred thirty-five thousand, three hundred seventy".