21410787495825 has 480 divisors, whose sum is σ = 50354994018560. Its totient is φ = 8753822668800.

The previous prime is 21410787495767. The next prime is 21410787495857. The reversal of 21410787495825 is 52859478701412.

21410787495825 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 0 + 7 + 8 + 7 + 49 + 582 + 5 = 666.

It is not a de Polignac number, because 21410787495825 - 2¹⁶ = 21410787430289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 753117711 + ... + 753146139.

Almost surely, 2^{21410787495825} is an apocalyptic number.

21410787495825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21410787495825 is an abundant number, since it is smaller than the sum of its proper divisors (28944206522735).

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

21410787495825 is a wasteful number, since it uses less digits than its factorization.

21410787495825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28599 (or 28585 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 63.

The spelling of 21410787495825 in words is "twenty-one trillion, four hundred ten billion, seven hundred eighty-seven million, four hundred ninety-five thousand, eight hundred twenty-five".