42387949624 has 8 divisors (see below), whose sum is σ = 79477405560. Its totient is φ = 21193974808.

The previous prime is 42387949621. The next prime is 42387949663. The reversal of 42387949624 is 42694978324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42387949621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2649246844 + ... + 2649246859.

It is an arithmetic number, because the mean of its divisors is an integer number (9934675695).

Almost surely, 2^42387949624 is an apocalyptic number.

It is an amenable number.

42387949624 is a deficient number, since it is larger than the sum of its proper divisors (37089455936).

42387949624 is a wasteful number, since it uses less digits than its factorization.

42387949624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298493709 (or 5298493705 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 58.

The spelling of 42387949624 in words is "forty-two billion, three hundred eighty-seven million, nine hundred forty-nine thousand, six hundred twenty-four".