21471095334 has 32 divisors (see below), whose sum is σ = 46669724640. Its totient is φ = 6545878272.

The previous prime is 21471095329. The next prime is 21471095417. The reversal of 21471095334 is 43359017412.

It is a super-2 number, since 2×21471095334² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 21471095292 and 21471095301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254207 + ... + 1271210.

It is an arithmetic number, because the mean of its divisors is an integer number (1458428895).

Almost surely, 2^21471095334 is an apocalyptic number.

21471095334 is an abundant number, since it is smaller than the sum of its proper divisors (25198629306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21471095334 is a wasteful number, since it uses less digits than its factorization.

21471095334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525544.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 21471095334 in words is "twenty-one billion, four hundred seventy-one million, ninety-five thousand, three hundred thirty-four".