42821571245 has 24 divisors (see below), whose sum is σ = 53517166560. Its totient is φ = 32890612160.

The previous prime is 42821571223. The next prime is 42821571259. The reversal of 42821571245 is 54217512824.

It is not a de Polignac number, because 42821571245 - 2⁸ = 42821570989 is a prime.

It is a super-2 number, since 2×42821571245² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724250 + ... + 781140.

It is an arithmetic number, because the mean of its divisors is an integer number (2229881940).

Almost surely, 2^42821571245 is an apocalyptic number.

It is an amenable number.

42821571245 is a deficient number, since it is larger than the sum of its proper divisors (10695595315).

42821571245 is a wasteful number, since it uses less digits than its factorization.

42821571245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57133 (or 57104 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The spelling of 42821571245 in words is "forty-two billion, eight hundred twenty-one million, five hundred seventy-one thousand, two hundred forty-five".