213149187421752 has 16 divisors (see below), whose sum is σ = 532872968554440. Its totient is φ = 71049729140576.

The previous prime is 213149187421721. The next prime is 213149187421759. The reversal of 213149187421752 is 257124781941312.

It is a super-2 number, since 2×213149187421752² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213149187421692 and 213149187421701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213149187421759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4440608071263 + ... + 4440608071310.

Almost surely, 2^{213149187421752} is an apocalyptic number.

It is an amenable number.

213149187421752 is an abundant number, since it is smaller than the sum of its proper divisors (319723781132688).

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

213149187421752 is a wasteful number, since it uses less digits than its factorization.

213149187421752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8881216142582 (or 8881216142578 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The spelling of 213149187421752 in words is "two hundred thirteen trillion, one hundred forty-nine billion, one hundred eighty-seven million, four hundred twenty-one thousand, seven hundred fifty-two".