42261261835 has 64 divisors (see below), whose sum is σ = 56357836416. Its totient is φ = 30233088000.

The previous prime is 42261261829. The next prime is 42261261851. The reversal of 42261261835 is 53816216224.

It is not a de Polignac number, because 42261261835 - 2³ = 42261261827 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78116665 + ... + 78117205.

It is an arithmetic number, because the mean of its divisors is an integer number (880591194).

Almost surely, 2^42261261835 is an apocalyptic number.

42261261835 is a deficient number, since it is larger than the sum of its proper divisors (14096574581).

42261261835 is a wasteful number, since it uses less digits than its factorization.

42261261835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its digits is 138240, while the sum is 40.

The spelling of 42261261835 in words is "forty-two billion, two hundred sixty-one million, two hundred sixty-one thousand, eight hundred thirty-five".