42881806335577 has 4 divisors (see below), whose sum is σ = 46780152366096. Its totient is φ = 38983460305060.

The previous prime is 42881806335551. The next prime is 42881806335631. The reversal of 42881806335577 is 77553360818824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42881806335577 - 2¹⁹ = 42881805811289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42881806335677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949173015243 + ... + 1949173015264.

It is an arithmetic number, because the mean of its divisors is an integer number (11695038091524).

Almost surely, 2^{42881806335577} is an apocalyptic number.

It is an amenable number.

42881806335577 is a deficient number, since it is larger than the sum of its proper divisors (3898346030519).

42881806335577 is a wasteful number, since it uses less digits than its factorization.

42881806335577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898346030518.

The product of its (nonzero) digits is 270950400, while the sum is 67.

The spelling of 42881806335577 in words is "forty-two trillion, eight hundred eighty-one billion, eight hundred six million, three hundred thirty-five thousand, five hundred seventy-seven".