1642070859 has 16 divisors (see below), whose sum is σ = 2572195584. Its totient is φ = 918640800.

The previous prime is 1642070849. The next prime is 1642070867. The reversal of 1642070859 is 9580702461.

It is not a de Polignac number, because 1642070859 - 2¹² = 1642066763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1642070859.

It is not an unprimeable number, because it can be changed into a prime (1642070849) 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, 1913407 + ... + 1914264.

It is an arithmetic number, because the mean of its divisors is an integer number (160762224).

Almost surely, 2^1642070859 is an apocalyptic number.

1642070859 is a deficient number, since it is larger than the sum of its proper divisors (930124725).

1642070859 is a wasteful number, since it uses less digits than its factorization.

1642070859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827698.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1642070859 is about 40522.4735054513. The cubic root of 1642070859 is about 1179.7698629520.

The spelling of 1642070859 in words is "one billion, six hundred forty-two million, seventy thousand, eight hundred fifty-nine".