42377815720439 has 16 divisors (see below), whose sum is σ = 43509844254240. Its totient is φ = 41261617858560.

The previous prime is 42377815720423. The next prime is 42377815720441. The reversal of 42377815720439 is 93402751877324.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42377815720439 - 2⁴ = 42377815720423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42377815722439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4232609 + ... + 10132650.

It is an arithmetic number, because the mean of its divisors is an integer number (2719365265890).

Almost surely, 2^{42377815720439} is an apocalyptic number.

42377815720439 is a deficient number, since it is larger than the sum of its proper divisors (1132028533801).

42377815720439 is a wasteful number, since it uses less digits than its factorization.

42377815720439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14365810.

The product of its (nonzero) digits is 71124480, while the sum is 62.

The spelling of 42377815720439 in words is "forty-two trillion, three hundred seventy-seven billion, eight hundred fifteen million, seven hundred twenty thousand, four hundred thirty-nine".