21477096475752 has 32 divisors (see below), whose sum is σ = 53693512221600. Its totient is φ = 7158929354304.

The previous prime is 21477096475729. The next prime is 21477096475759. The reversal of 21477096475752 is 25757469077412.

It is a happy number.

It is a super-2 number, since 2×21477096475752² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21477096475759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4709803 + ... + 8070714.

It is an arithmetic number, because the mean of its divisors is an integer number (1677922256925).

Almost surely, 2^{21477096475752} is an apocalyptic number.

It is an amenable number.

21477096475752 is an abundant number, since it is smaller than the sum of its proper divisors (32216415745848).

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

21477096475752 is a wasteful number, since it uses less digits than its factorization.

21477096475752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12850545 (or 12850541 counting only the distinct ones).

The product of its (nonzero) digits is 207446400, while the sum is 66.

The spelling of 21477096475752 in words is "twenty-one trillion, four hundred seventy-seven billion, ninety-six million, four hundred seventy-five thousand, seven hundred fifty-two".