42745342542 has 32 divisors (see below), whose sum is σ = 101951626752. Its totient is φ = 11681956704.

The previous prime is 42745342537. The next prime is 42745342553. The reversal of 42745342542 is 24524354724.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 42745342494 and 42745342503.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 22123953 + ... + 22125884.

It is an arithmetic number, because the mean of its divisors is an integer number (3185988336).

Almost surely, 2^42745342542 is an apocalyptic number.

42745342542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42745342542 is an abundant number, since it is smaller than the sum of its proper divisors (59206284210).

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

42745342542 is a wasteful number, since it uses less digits than its factorization.

42745342542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44249872.

The product of its digits is 1075200, while the sum is 42.

The spelling of 42745342542 in words is "forty-two billion, seven hundred forty-five million, three hundred forty-two thousand, five hundred forty-two".