1859654049 has 16 divisors (see below), whose sum is σ = 2742009024. Its totient is φ = 1111622400.

The previous prime is 1859654047. The next prime is 1859654053. The reversal of 1859654049 is 9404569581.

It is not a de Polignac number, because 1859654049 - 2¹ = 1859654047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1859653992 and 1859654010.

It is not an unprimeable number, because it can be changed into a prime (1859654047) 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, 383572 + ... + 388389.

It is an arithmetic number, because the mean of its divisors is an integer number (171375564).

Almost surely, 2^1859654049 is an apocalyptic number.

It is an amenable number.

1859654049 is a deficient number, since it is larger than the sum of its proper divisors (882354975).

1859654049 is a wasteful number, since it uses less digits than its factorization.

1859654049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772048.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 1859654049 is about 43123.7063458140. The cubic root of 1859654049 is about 1229.7326955654.

The spelling of 1859654049 in words is "one billion, eight hundred fifty-nine million, six hundred fifty-four thousand, forty-nine".