42106641213651 has 64 divisors (see below), whose sum is σ = 65120712523776. Its totient is φ = 23704651555200.

The previous prime is 42106641213647. The next prime is 42106641213673. The reversal of 42106641213651 is 15631214660124.

It is not a de Polignac number, because 42106641213651 - 2² = 42106641213647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42106641213151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 329638686 + ... + 329766396.

It is an arithmetic number, because the mean of its divisors is an integer number (1017511133184).

Almost surely, 2^{42106641213651} is an apocalyptic number.

42106641213651 is a deficient number, since it is larger than the sum of its proper divisors (23014071310125).

42106641213651 is a wasteful number, since it uses less digits than its factorization.

42106641213651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128712.

The product of its (nonzero) digits is 207360, while the sum is 42.

Adding to 42106641213651 its reverse (15631214660124), we get a palindrome (57737855873775).

The spelling of 42106641213651 in words is "forty-two trillion, one hundred six billion, six hundred forty-one million, two hundred thirteen thousand, six hundred fifty-one".