42670872851 has 4 divisors (see below), whose sum is σ = 42691301400. Its totient is φ = 42650444304.

The previous prime is 42670872793. The next prime is 42670872913. The reversal of 42670872851 is 15827807624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42670872851 - 2⁶ = 42670872787 is a prime.

It is a super-3 number, since 3×42670872851³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42670872851.

It is not an unprimeable number, because it can be changed into a prime (42670892851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10211141 + ... + 10215318.

It is an arithmetic number, because the mean of its divisors is an integer number (10672825350).

Almost surely, 2^42670872851 is an apocalyptic number.

42670872851 is a deficient number, since it is larger than the sum of its proper divisors (20428549).

42670872851 is a wasteful number, since it uses less digits than its factorization.

42670872851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20428548.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 42670872851 in words is "forty-two billion, six hundred seventy million, eight hundred seventy-two thousand, eight hundred fifty-one".