42090269972 has 12 divisors (see below), whose sum is σ = 73659476436. Its totient is φ = 21044705280.

The previous prime is 42090269971. The next prime is 42090269987. The reversal of 42090269972 is 27996209024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14102987536 + 27987282436 = 118756^2 + 167294^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42090269972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42090269971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232418 + ... + 371750.

It is an arithmetic number, because the mean of its divisors is an integer number (6138289703).

Almost surely, 2^42090269972 is an apocalyptic number.

It is an amenable number.

42090269972 is a deficient number, since it is larger than the sum of its proper divisors (31569206464).

42090269972 is a wasteful number, since it uses less digits than its factorization.

42090269972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214858 (or 214856 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 42090269972 in words is "forty-two billion, ninety million, two hundred sixty-nine thousand, nine hundred seventy-two".