21051148295475 has 18 divisors (see below), whose sum is σ = 37704945614076. Its totient is φ = 11227279090800.

The previous prime is 21051148295431. The next prime is 21051148295483. The reversal of 21051148295475 is 57459284115012.

21051148295475 is a `hidden beast` number, since 2 + 1 + 0 + 5 + 1 + 1 + 4 + 82 + 95 + 475 = 666.

It is not a de Polignac number, because 21051148295475 - 2¹⁶ = 21051148229939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46780329321 + ... + 46780329770.

It is an arithmetic number, because the mean of its divisors is an integer number (2094719200782).

Almost surely, 2^{21051148295475} is an apocalyptic number.

21051148295475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21051148295475 is a deficient number, since it is larger than the sum of its proper divisors (16653797318601).

21051148295475 is a wasteful number, since it uses less digits than its factorization.

21051148295475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93560659107 (or 93560659099 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 21051148295475 in words is "twenty-one trillion, fifty-one billion, one hundred forty-eight million, two hundred ninety-five thousand, four hundred seventy-five".