42261790452 has 48 divisors (see below), whose sum is σ = 113327746560. Its totient is φ = 12007336032.

The previous prime is 42261790423. The next prime is 42261790471. The reversal of 42261790452 is 25409716224.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390318 + ... + 1420389.

It is an arithmetic number, because the mean of its divisors is an integer number (2360994720).

Almost surely, 2^42261790452 is an apocalyptic number.

42261790452 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42261790452 is an abundant number, since it is smaller than the sum of its proper divisors (71065956108).

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

42261790452 is a wasteful number, since it uses less digits than its factorization.

42261790452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810900 (or 2810898 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 42261790452 in words is "forty-two billion, two hundred sixty-one million, seven hundred ninety thousand, four hundred fifty-two".