1642611802 has 16 divisors (see below), whose sum is σ = 2698426080. Its totient is φ = 745278192.

The previous prime is 1642611713. The next prime is 1642611809. The reversal of 1642611802 is 2081162461.

It is not an unprimeable number, because it can be changed into a prime (1642611809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533868 + ... + 536935.

It is an arithmetic number, because the mean of its divisors is an integer number (168651630).

Almost surely, 2^1642611802 is an apocalyptic number.

1642611802 is a deficient number, since it is larger than the sum of its proper divisors (1055814278).

1642611802 is a wasteful number, since it uses less digits than its factorization.

1642611802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070877.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1642611802 is about 40529.1475607371. The cubic root of 1642611802 is about 1179.8993982030.

The spelling of 1642611802 in words is "one billion, six hundred forty-two million, six hundred eleven thousand, eight hundred two".