42998734791 has 32 divisors (see below), whose sum is σ = 65943459840. Its totient is φ = 27662342400.

The previous prime is 42998734777. The next prime is 42998734813. The reversal of 42998734791 is 19743789924.

42998734791 is a `hidden beast` number, since 4 + 2 + 9 + 98 + 73 + 479 + 1 = 666.

It is not a de Polignac number, because 42998734791 - 2¹⁴ = 42998718407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42998734291) 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 31 ways as a sum of consecutive naturals, for example, 222696 + ... + 368226.

It is an arithmetic number, because the mean of its divisors is an integer number (2060733120).

Almost surely, 2^42998734791 is an apocalyptic number.

42998734791 is a deficient number, since it is larger than the sum of its proper divisors (22944725049).

42998734791 is a wasteful number, since it uses less digits than its factorization.

42998734791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145924 (or 145918 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 42998734791 in words is "forty-two billion, nine hundred ninety-eight million, seven hundred thirty-four thousand, seven hundred ninety-one".