42061451712 has 56 divisors (see below), whose sum is σ = 127185822336. Its totient is φ = 12017557248.

The previous prime is 42061451711. The next prime is 42061451743. The reversal of 42061451712 is 21715416024.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42061451711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15646518 + ... + 15649205.

Almost surely, 2^42061451712 is an apocalyptic number.

42061451712 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42061451712 is an abundant number, since it is smaller than the sum of its proper divisors (85124370624).

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

42061451712 is a wasteful number, since it uses less digits than its factorization.

42061451712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31295745 (or 31295735 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 42061451712 its reverse (21715416024), we get a palindrome (63776867736).

The spelling of 42061451712 in words is "forty-two billion, sixty-one million, four hundred fifty-one thousand, seven hundred twelve".