29874702649 has 27 divisors (see below), whose sum is σ = 34698691461. Its totient is φ = 25698297240.

The previous prime is 29874702643. The next prime is 29874702659. The reversal of 29874702649 is 94620747892.

The square root of 29874702649 is 172843.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 29874702649 - 2⁵ = 29874702617 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 29874702593 and 29874702602.

It is not an unprimeable number, because it can be changed into a prime (29874702643) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 36123774 + ... + 36124600.

Almost surely, 2^29874702649 is an apocalyptic number.

29874702649 is the 172843-rd square number.

29874702649 is the 86422-nd centered octagonal number.

It is an amenable number.

29874702649 is a deficient number, since it is larger than the sum of its proper divisors (4823988812).

29874702649 is an frugal number, since it uses more digits than its factorization.

29874702649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 29874702649 in words is "twenty-nine billion, eight hundred seventy-four million, seven hundred two thousand, six hundred forty-nine".