42137323546 has 4 divisors (see below), whose sum is σ = 63205985322. Its totient is φ = 21068661772.

The previous prime is 42137323541. The next prime is 42137323577. The reversal of 42137323546 is 64532373124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38257404025 + 3879919521 = 195595^2 + 62289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42137323499 and 42137323508.

It is not an unprimeable number, because it can be changed into a prime (42137323541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10534330885 + ... + 10534330888.

Almost surely, 2^42137323546 is an apocalyptic number.

42137323546 is a deficient number, since it is larger than the sum of its proper divisors (21068661776).

42137323546 is a wasteful number, since it uses less digits than its factorization.

42137323546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21068661775.

The product of its digits is 362880, while the sum is 40.

The spelling of 42137323546 in words is "forty-two billion, one hundred thirty-seven million, three hundred twenty-three thousand, five hundred forty-six".