29791374849 has 6 divisors (see below), whose sum is σ = 43031985906. Its totient is φ = 19860916560.

The previous prime is 29791374839. The next prime is 29791374857. The reversal of 29791374849 is 94847319792.

It can be written as a sum of positive squares in only one way, i.e., 24353787249 + 5437587600 = 156057^2 + 73740^2 .

It is not a de Polignac number, because 29791374849 - 2¹⁵ = 29791342081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29791374839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1655076372 + ... + 1655076389.

It is an arithmetic number, because the mean of its divisors is an integer number (7171997651).

Almost surely, 2^29791374849 is an apocalyptic number.

It is an amenable number.

29791374849 is a deficient number, since it is larger than the sum of its proper divisors (13240611057).

29791374849 is a wasteful number, since it uses less digits than its factorization.

29791374849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310152767 (or 3310152764 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 29791374849 in words is "twenty-nine billion, seven hundred ninety-one million, three hundred seventy-four thousand, eight hundred forty-nine".