42777803713381 has 16 divisors (see below), whose sum is σ = 46779139068480. Its totient is φ = 38795226981120.

The previous prime is 42777803713373. The next prime is 42777803713391. The reversal of 42777803713381 is 18331730877724.

It is a cyclic number.

It is not a de Polignac number, because 42777803713381 - 2³ = 42777803713373 is a prime.

It is a super-2 number, since 2×42777803713381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42777803713361) 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, 47820310 + ... + 48706648.

It is an arithmetic number, because the mean of its divisors is an integer number (2923696191780).

Almost surely, 2^{42777803713381} is an apocalyptic number.

It is an amenable number.

42777803713381 is a deficient number, since it is larger than the sum of its proper divisors (4001335355099).

42777803713381 is a wasteful number, since it uses less digits than its factorization.

42777803713381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896916.

The product of its (nonzero) digits is 33191424, while the sum is 61.

The spelling of 42777803713381 in words is "forty-two trillion, seven hundred seventy-seven billion, eight hundred three million, seven hundred thirteen thousand, three hundred eighty-one".