29861974961 has 16 divisors (see below), whose sum is σ = 37110038784. Its totient is φ = 23397660864.

The previous prime is 29861974931. The next prime is 29861974969. The reversal of 29861974961 is 16947916892.

It is a cyclic number.

It is not a de Polignac number, because 29861974961 - 2³⁰ = 28788233137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29861974894 and 29861974903.

It is not an unprimeable number, because it can be changed into a prime (29861974969) 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, 1583606 + ... + 1602351.

It is an arithmetic number, because the mean of its divisors is an integer number (2319377424).

Almost surely, 2^29861974961 is an apocalyptic number.

It is an amenable number.

29861974961 is a deficient number, since it is larger than the sum of its proper divisors (7248063823).

29861974961 is a wasteful number, since it uses less digits than its factorization.

29861974961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186080.

The product of its digits is 11757312, while the sum is 62.

The spelling of 29861974961 in words is "twenty-nine billion, eight hundred sixty-one million, nine hundred seventy-four thousand, nine hundred sixty-one".