2009864970842 has 16 divisors (see below), whose sum is σ = 3260056325760. Its totient is φ = 925695004608.

The previous prime is 2009864970749. The next prime is 2009864970863. The reversal of 2009864970842 is 2480794689002.

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, 628867292 + ... + 628870487.

It is an arithmetic number, because the mean of its divisors is an integer number (203753520360).

Almost surely, 2^{2009864970842} is an apocalyptic number.

2009864970842 is a deficient number, since it is larger than the sum of its proper divisors (1250191354918).

2009864970842 is a wasteful number, since it uses less digits than its factorization.

2009864970842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257737845.

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 2009864970842 in words is "two trillion, nine billion, eight hundred sixty-four million, nine hundred seventy thousand, eight hundred forty-two".