29699974081 has 16 divisors (see below), whose sum is σ = 30714899200. Its totient is φ = 28705622400.

The previous prime is 29699973977. The next prime is 29699974091. The reversal of 29699974081 is 18047999692.

It is a cyclic number.

It is not a de Polignac number, because 29699974081 - 2¹⁷ = 29699843009 is a prime.

It is a super-2 number, since 2×29699974081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29699974091) 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, 1002205 + ... + 1031413.

It is an arithmetic number, because the mean of its divisors is an integer number (1919681200).

Almost surely, 2^29699974081 is an apocalyptic number.

It is an amenable number.

29699974081 is a deficient number, since it is larger than the sum of its proper divisors (1014925119).

29699974081 is a wasteful number, since it uses less digits than its factorization.

29699974081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29560.

The product of its (nonzero) digits is 17635968, while the sum is 64.

The spelling of 29699974081 in words is "twenty-nine billion, six hundred ninety-nine million, nine hundred seventy-four thousand, eighty-one".