42720291892 has 48 divisors (see below), whose sum is σ = 78530909184. Its totient is φ = 20309184000.

The previous prime is 42720291869. The next prime is 42720291893. The reversal of 42720291892 is 29819202724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42720291893) 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 in 15 ways as a sum of consecutive naturals, for example, 2571292 + ... + 2587852.

It is an arithmetic number, because the mean of its divisors is an integer number (1636060608).

Almost surely, 2^42720291892 is an apocalyptic number.

It is an amenable number.

42720291892 is a deficient number, since it is larger than the sum of its proper divisors (35810617292).

42720291892 is a wasteful number, since it uses less digits than its factorization.

42720291892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16960 (or 16958 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 42720291892 in words is "forty-two billion, seven hundred twenty million, two hundred ninety-one thousand, eight hundred ninety-two".