42154404620 has 24 divisors (see below), whose sum is σ = 93731559264. Its totient is φ = 15869893376.

The previous prime is 42154404571. The next prime is 42154404629. The reversal of 42154404620 is 2640445124.

It is not an unprimeable number, because it can be changed into a prime (42154404629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61991432 + ... + 61992111.

It is an arithmetic number, because the mean of its divisors is an integer number (3905481636).

Almost surely, 2^42154404620 is an apocalyptic number.

It is an amenable number.

42154404620 is an abundant number, since it is smaller than the sum of its proper divisors (51577154644).

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

42154404620 is a wasteful number, since it uses less digits than its factorization.

42154404620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123983569 (or 123983567 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 42154404620 its reverse (2640445124), we get a palindrome (44794849744).

The spelling of 42154404620 in words is "forty-two billion, one hundred fifty-four million, four hundred four thousand, six hundred twenty".