21470546673125 has 20 divisors (see below), whose sum is σ = 29268649234176. Its totient is φ = 15614943030000.

The previous prime is 21470546673097. The next prime is 21470546673137. The reversal of 21470546673125 is 52137664507412.

It is not a de Polignac number, because 21470546673125 - 2¹² = 21470546669029 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1561487429 + ... + 1561501178.

Almost surely, 2^{21470546673125} is an apocalyptic number.

21470546673125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21470546673125 is a deficient number, since it is larger than the sum of its proper divisors (7798102561051).

21470546673125 is an equidigital number, since it uses as much as digits as its factorization.

21470546673125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122988638 (or 3122988623 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 21470546673125 in words is "twenty-one trillion, four hundred seventy billion, five hundred forty-six million, six hundred seventy-three thousand, one hundred twenty-five".