42053518715172 has 12 divisors (see below), whose sum is σ = 98124877002096. Its totient is φ = 14017839571720.

The previous prime is 42053518715167. The next prime is 42053518715177. The reversal of 42053518715172 is 27151781535024.

It is an interprime number because it is at equal distance from previous prime (42053518715167) and next prime (42053518715177).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (42053518715177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752229946454 + ... + 1752229946477.

It is an arithmetic number, because the mean of its divisors is an integer number (8177073083508).

Almost surely, 2^{42053518715172} is an apocalyptic number.

It is an amenable number.

42053518715172 is an abundant number, since it is smaller than the sum of its proper divisors (56071358286924).

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

42053518715172 is a wasteful number, since it uses less digits than its factorization.

42053518715172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504459892938 (or 3504459892936 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 51.

The spelling of 42053518715172 in words is "forty-two trillion, fifty-three billion, five hundred eighteen million, seven hundred fifteen thousand, one hundred seventy-two".