21051148295474 has 96 divisors (see below), whose sum is σ = 37892392366080. Its totient is φ = 8731076508000.

The previous prime is 21051148295431. The next prime is 21051148295483. The reversal of 21051148295474 is 47459284115012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29725547 + ... + 30425489.

It is an arithmetic number, because the mean of its divisors is an integer number (394712420480).

Almost surely, 2^{21051148295474} is an apocalyptic number.

21051148295474 is a deficient number, since it is larger than the sum of its proper divisors (16841244070606).

21051148295474 is a wasteful number, since it uses less digits than its factorization.

21051148295474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700228 (or 700217 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 21051148295474 in words is "twenty-one trillion, fifty-one billion, one hundred forty-eight million, two hundred ninety-five thousand, four hundred seventy-four".