42406413555 has 96 divisors (see below), whose sum is σ = 79630986240. Its totient is φ = 19104583680.

The previous prime is 42406413547. The next prime is 42406413571. The reversal of 42406413555 is 55531460424.

It is not a de Polignac number, because 42406413555 - 2³ = 42406413547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3761487 + ... + 3772743.

It is an arithmetic number, because the mean of its divisors is an integer number (829489440).

Almost surely, 2^42406413555 is an apocalyptic number.

42406413555 is a deficient number, since it is larger than the sum of its proper divisors (37224572685).

42406413555 is a wasteful number, since it uses less digits than its factorization.

42406413555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389 (or 11372 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 42406413555 its reverse (55531460424), we get a palindrome (97937873979).

The spelling of 42406413555 in words is "forty-two billion, four hundred six million, four hundred thirteen thousand, five hundred fifty-five".