42787887707 has 16 divisors (see below), whose sum is σ = 46077558912. Its totient is φ = 39589829760.

The previous prime is 42787887679. The next prime is 42787887719. The reversal of 42787887707 is 70778878724.

It is a cyclic number.

It is not a de Polignac number, because 42787887707 - 2¹⁰ = 42787886683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42787887757) 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, 148508 + ... + 328070.

It is an arithmetic number, because the mean of its divisors is an integer number (2879847432).

Almost surely, 2^42787887707 is an apocalyptic number.

42787887707 is a deficient number, since it is larger than the sum of its proper divisors (3289671205).

42787887707 is a wasteful number, since it uses less digits than its factorization.

42787887707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179818.

The product of its (nonzero) digits is 68841472, while the sum is 65.

The spelling of 42787887707 in words is "forty-two billion, seven hundred eighty-seven million, eight hundred eighty-seven thousand, seven hundred seven".