83609154728 has 32 divisors (see below), whose sum is σ = 171089055360. Its totient is φ = 37988532480.

The previous prime is 83609154709. The next prime is 83609154767. The reversal of 83609154728 is 82745190638.

It is a self number, because there is not a number n which added to its sum of digits gives 83609154728.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21200 + ... + 409472.

It is an arithmetic number, because the mean of its divisors is an integer number (5346532980).

It is a 2-persistent number, because it is pandigital, and so is 2⋅83609154728 = 167218309456, but 3⋅83609154728 = 250827464184 is not.

Almost surely, 2^83609154728 is an apocalyptic number.

83609154728 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

83609154728 is the 154559-th centered heptagonal number.

It is an amenable number.

83609154728 is an abundant number, since it is smaller than the sum of its proper divisors (87479900632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83609154728 is a wasteful number, since it uses less digits than its factorization.

83609154728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390737 (or 390733 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 83609154728 in words is "eighty-three billion, six hundred nine million, one hundred fifty-four thousand, seven hundred twenty-eight".