42156202144 has 36 divisors (see below), whose sum is σ = 96545234394. Its totient is φ = 18066943104.

The previous prime is 42156202129. The next prime is 42156202189. The reversal of 42156202144 is 44120265124.

It can be written as a sum of positive squares in only one way, i.e., 35943609744 + 6212592400 = 189588^2 + 78820^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13441099 + ... + 13444234.

Almost surely, 2^42156202144 is an apocalyptic number.

It is an amenable number.

42156202144 is an abundant number, since it is smaller than the sum of its proper divisors (54389032250).

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

42156202144 is a wasteful number, since it uses less digits than its factorization.

42156202144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26885357 (or 26885342 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 42156202144 its reverse (44120265124), we get a palindrome (86276467268).

The spelling of 42156202144 in words is "forty-two billion, one hundred fifty-six million, two hundred two thousand, one hundred forty-four".