42149425684 has 12 divisors (see below), whose sum is σ = 73830502900. Its totient is φ = 21054996288.

The previous prime is 42149425667. The next prime is 42149425691. The reversal of 42149425684 is 48652494124.

It can be written as a sum of positive squares in 2 ways, for example, as 20369569284 + 21779856400 = 142722^2 + 147580^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4924329 + ... + 4932880.

Almost surely, 2^42149425684 is an apocalyptic number.

It is an amenable number.

42149425684 is a deficient number, since it is larger than the sum of its proper divisors (31681077216).

42149425684 is a wasteful number, since it uses less digits than its factorization.

42149425684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9858282 (or 9858280 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The spelling of 42149425684 in words is "forty-two billion, one hundred forty-nine million, four hundred twenty-five thousand, six hundred eighty-four".