2947406989899 has 16 divisors (see below), whose sum is σ = 3940002789408. Its totient is φ = 1959875165952.

The previous prime is 2947406989859. The next prime is 2947406989991. The reversal of 2947406989899 is 9989896047492.

It is not a de Polignac number, because 2947406989899 - 2³¹ = 2945259506251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2947406989859) 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, 23897839 + ... + 24020855.

It is an arithmetic number, because the mean of its divisors is an integer number (246250174338).

Almost surely, 2^{2947406989899} is an apocalyptic number.

2947406989899 is a deficient number, since it is larger than the sum of its proper divisors (992595799509).

2947406989899 is a wasteful number, since it uses less digits than its factorization.

2947406989899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143534.

The product of its (nonzero) digits is 5079158784, while the sum is 84.

The spelling of 2947406989899 in words is "two trillion, nine hundred forty-seven billion, four hundred six million, nine hundred eighty-nine thousand, eight hundred ninety-nine".