42787556252 has 12 divisors (see below), whose sum is σ = 85575112560. Its totient is φ = 18337524096.

The previous prime is 42787556237. The next prime is 42787556257. The reversal of 42787556252 is 25265578724.

It is a happy number.

42787556252 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42787556194 and 42787556203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42787556257) 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, 764063477 + ... + 764063532.

It is an arithmetic number, because the mean of its divisors is an integer number (7131259380).

Almost surely, 2^42787556252 is an apocalyptic number.

It is an amenable number.

42787556252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42787556252 is a wasteful number, since it uses less digits than its factorization.

42787556252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528127020 (or 1528127018 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 53.

The spelling of 42787556252 in words is "forty-two billion, seven hundred eighty-seven million, five hundred fifty-six thousand, two hundred fifty-two".