42651881285 has 16 divisors (see below), whose sum is σ = 55123977216. Its totient is φ = 31494132288.

The previous prime is 42651881263. The next prime is 42651881303. The reversal of 42651881285 is 58218815624.

It is a cyclic number.

It is not a de Polignac number, because 42651881285 - 2²⁰ = 42650832709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116572 + ... + 1154138.

It is an arithmetic number, because the mean of its divisors is an integer number (3445248576).

Almost surely, 2^42651881285 is an apocalyptic number.

It is an amenable number.

42651881285 is a deficient number, since it is larger than the sum of its proper divisors (12472095931).

42651881285 is a wasteful number, since it uses less digits than its factorization.

42651881285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55052.

The product of its digits is 1228800, while the sum is 50.

The spelling of 42651881285 in words is "forty-two billion, six hundred fifty-one million, eight hundred eighty-one thousand, two hundred eighty-five".