42455670851 has 16 divisors (see below), whose sum is σ = 49047441408. Its totient is φ = 36319977600.

The previous prime is 42455670823. The next prime is 42455670853. The reversal of 42455670851 is 15807655424.

It is a cyclic number.

It is not a de Polignac number, because 42455670851 - 2¹⁴ = 42455654467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42455670796 and 42455670805.

It is not an unprimeable number, because it can be changed into a prime (42455670853) 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, 1525406 + ... + 1552988.

It is an arithmetic number, because the mean of its divisors is an integer number (3065465088).

Almost surely, 2^42455670851 is an apocalyptic number.

42455670851 is a deficient number, since it is larger than the sum of its proper divisors (6591770557).

42455670851 is a wasteful number, since it uses less digits than its factorization.

42455670851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35842.

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 42455670851 in words is "forty-two billion, four hundred fifty-five million, six hundred seventy thousand, eight hundred fifty-one".