42861751502643 has 6 divisors (see below), whose sum is σ = 61911418837164. Its totient is φ = 28574501001756.

The previous prime is 42861751502617. The next prime is 42861751502663. The reversal of 42861751502643 is 34620515716824.

42861751502643 is a `hidden beast` number, since 4 + 2 + 8 + 6 + 1 + 75 + 1 + 502 + 64 + 3 = 666.

It is not a de Polignac number, because 42861751502643 - 2⁹ = 42861751502131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42861751502643.

It is not an unprimeable number, because it can be changed into a prime (42861751502663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2381208416805 + ... + 2381208416822.

It is an arithmetic number, because the mean of its divisors is an integer number (10318569806194).

Almost surely, 2^{42861751502643} is an apocalyptic number.

42861751502643 is a deficient number, since it is larger than the sum of its proper divisors (19049667334521).

42861751502643 is a wasteful number, since it uses less digits than its factorization.

42861751502643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762416833633 (or 4762416833630 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 42861751502643 in words is "forty-two trillion, eight hundred sixty-one billion, seven hundred fifty-one million, five hundred two thousand, six hundred forty-three".