42729734148 has 24 divisors (see below), whose sum is σ = 99728459040. Its totient is φ = 14239566720.

The previous prime is 42729734143. The next prime is 42729734153. The reversal of 42729734148 is 84143792724.

It is an interprime number because it is at equal distance from previous prime (42729734143) and next prime (42729734153).

It is a self number, because there is not a number n which added to its sum of digits gives 42729734148.

It is not an unprimeable number, because it can be changed into a prime (42729734143) 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, 411138 + ... + 504473.

It is an arithmetic number, because the mean of its divisors is an integer number (4155352460).

Almost surely, 2^42729734148 is an apocalyptic number.

It is an amenable number.

42729734148 is an abundant number, since it is smaller than the sum of its proper divisors (56998724892).

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

42729734148 is a wasteful number, since it uses less digits than its factorization.

42729734148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919507 (or 919505 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 42729734148 in words is "forty-two billion, seven hundred twenty-nine million, seven hundred thirty-four thousand, one hundred forty-eight".