42156651412 has 6 divisors (see below), whose sum is σ = 73774139978. Its totient is φ = 21078325704.

The previous prime is 42156651389. The next prime is 42156651419. The reversal of 42156651412 is 21415665124.

It can be written as a sum of positive squares in only one way, i.e., 42088984336 + 67667076 = 205156^2 + 8226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42156651419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5269581423 + ... + 5269581430.

Almost surely, 2^42156651412 is an apocalyptic number.

It is an amenable number.

42156651412 is a deficient number, since it is larger than the sum of its proper divisors (31617488566).

42156651412 is a wasteful number, since it uses less digits than its factorization.

42156651412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10539162857 (or 10539162855 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The spelling of 42156651412 in words is "forty-two billion, one hundred fifty-six million, six hundred fifty-one thousand, four hundred twelve".