42405954478 has 24 divisors (see below), whose sum is σ = 64671186888. Its totient is φ = 20854504512.

The previous prime is 42405954467. The next prime is 42405954491. The reversal of 42405954478 is 87445950424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3970101 + ... + 3980767.

It is an arithmetic number, because the mean of its divisors is an integer number (2694632787).

Almost surely, 2^42405954478 is an apocalyptic number.

42405954478 is a deficient number, since it is larger than the sum of its proper divisors (22265232410).

42405954478 is a wasteful number, since it uses less digits than its factorization.

42405954478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11188 (or 11115 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 42405954478 in words is "forty-two billion, four hundred five million, nine hundred fifty-four thousand, four hundred seventy-eight".