21475070478134 has 16 divisors (see below), whose sum is σ = 39646283959968. Its totient is φ = 8495632276992.

The previous prime is 21475070478133. The next prime is 21475070478137. The reversal of 21475070478134 is 43187407057412.

It is a super-2 number, since 2×21475070478134² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21475070478133) 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, 58997446187 + ... + 58997446550.

It is an arithmetic number, because the mean of its divisors is an integer number (2477892747498).

Almost surely, 2^{21475070478134} is an apocalyptic number.

21475070478134 is a deficient number, since it is larger than the sum of its proper divisors (18171213481834).

21475070478134 is a wasteful number, since it uses less digits than its factorization.

21475070478134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117994892759.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 21475070478134 in words is "twenty-one trillion, four hundred seventy-five billion, seventy million, four hundred seventy-eight thousand, one hundred thirty-four".