2047557156 has 12 divisors (see below), whose sum is σ = 4777633392. Its totient is φ = 682519048.

The previous prime is 2047557139. The next prime is 2047557199. The reversal of 2047557156 is 6517557402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85314870 + ... + 85314893.

It is an arithmetic number, because the mean of its divisors is an integer number (398136116).

Almost surely, 2^2047557156 is an apocalyptic number.

It is an amenable number.

2047557156 is an abundant number, since it is smaller than the sum of its proper divisors (2730076236).

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

2047557156 is a wasteful number, since it uses less digits than its factorization.

2047557156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170629770 (or 170629768 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The square root of 2047557156 is about 45249.9409502377. The cubic root of 2047557156 is about 1269.8293022899.

The spelling of 2047557156 in words is "two billion, forty-seven million, five hundred fifty-seven thousand, one hundred fifty-six".