42155231032052 has 24 divisors (see below), whose sum is σ = 77680634569440. Its totient is φ = 19961514344160.

The previous prime is 42155231032049. The next prime is 42155231032081. The reversal of 42155231032052 is 25023013255124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93565274 + ... + 94014737.

It is an arithmetic number, because the mean of its divisors is an integer number (3236693107060).

Almost surely, 2^{42155231032052} is an apocalyptic number.

It is an amenable number.

42155231032052 is a deficient number, since it is larger than the sum of its proper divisors (35525403537388).

42155231032052 is a wasteful number, since it uses less digits than its factorization.

42155231032052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187582991 (or 187582989 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 42155231032052 its reverse (25023013255124), we get a palindrome (67178244287176).

The spelling of 42155231032052 in words is "forty-two trillion, one hundred fifty-five billion, two hundred thirty-one million, thirty-two thousand, fifty-two".