42047793892 has 24 divisors (see below), whose sum is σ = 79249742712. Its totient is φ = 19405248000.

The previous prime is 42047793869. The next prime is 42047793929. The reversal of 42047793892 is 29839774024.

It can be written as a sum of positive squares in 4 ways, for example, as 555733476 + 41492060416 = 23574^2 + 203696^2 .

It is a super-2 number, since 2×42047793892² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1078092 + ... + 1116412.

It is an arithmetic number, because the mean of its divisors is an integer number (3302072613).

Almost surely, 2^42047793892 is an apocalyptic number.

It is an amenable number.

42047793892 is a deficient number, since it is larger than the sum of its proper divisors (37201948820).

42047793892 is a wasteful number, since it uses less digits than its factorization.

42047793892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59439 (or 59437 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 42047793892 in words is "forty-two billion, forty-seven million, seven hundred ninety-three thousand, eight hundred ninety-two".