42172027124 has 6 divisors (see below), whose sum is σ = 73801047474. Its totient is φ = 21086013560.

The previous prime is 42172027091. The next prime is 42172027133.

42172027124 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 38286748900 + 3885278224 = 195670^2 + 62332^2 .

It is a super-2 number, since 2×42172027124² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5271503387 + ... + 5271503394.

It is an arithmetic number, because the mean of its divisors is an integer number (12300174579).

Almost surely, 2^42172027124 is an apocalyptic number.

It is an amenable number.

42172027124 is a deficient number, since it is larger than the sum of its proper divisors (31629020350).

42172027124 is a wasteful number, since it uses less digits than its factorization.

42172027124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10543006785 (or 10543006783 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

It can be divided in two parts, 421720 and 27124, that added together give a palindrome (448844).

The spelling of 42172027124 in words is "forty-two billion, one hundred seventy-two million, twenty-seven thousand, one hundred twenty-four".